UK & Eire Natural History Bloggers
Showing posts with label Birds. Show all posts
Showing posts with label Birds. Show all posts

Wednesday, 27 February 2013

Quick update.

Hello everyone sorry it has taken me so long to give write this however time has been limited recently with coursework and work taking priority. This edition really is as the title suggests a quick update as to what I have been up to recently. I hope you all have been enjoying the dry but colder weather recently ! so without further delay here is the latest edition !

    Plovers, news and humour.

On a recent excursion to a nearby seaside town I was surprised and pleased to see a Ringed Plover confidently patrolling the pavements picking up scraps of food no doubt dropped y passing pedestrians. I watched for several minutes as it seemed unfazed by the strange bipedal creatures which shared its adopted feeding station. Eventually it it moved off, most likely in search of more dropped tasty morsels.
 
 http://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=HMKWDLzsqaSehM&tbnid=uZRMrw18qClRbM:&ved=0CAQQjB0&url=http%3A%2F%2Fwww.birdforum.net%2Fopus%2FRinged_Plover&ei=LEUuUdDmFuXV4gSp04GYCQ&bvm=bv.42965579,d.d2k&psig=AFQjCNFX_kkgXM-6u31-Gteot6xJTJyx-Q&ust=1362073252914970


 Flights booked! my return to South Africa has picked up pace with the confirmation of my flight to Durban. I will be out there for a little over two weeks to work with some of the most endangered large carnivores on the planet the African Wild Dog. This is a project I am very excited about participating in and hopefully in some way contributing towards making a   difference in  the conservation of this most incredible predator.



Image taken by author

I was pleased to hear that the Zambian government has recently banned the trophy hunting of Leopards and Lions. The government received an income of 3 million dollars a year from the "sport" which was deemed not enough to justify the impact this has on wildlife. Tourism minister Sylvia Masebo had this to say "why should we lose our animals for 3 million dollars a year? the revenue we get from tourists is much higher".
Source BBC Wildlife magazine March 2013.

A source of amusement via Mathew Button

This is really funny have a look at this !

http://www.youtube.com/watch?v=8lOhvS-xyrA

And this as well I'm sure there are people out there that can relate to this !

http://www.youtube.com/watch?v=w0ffwDYo00Q

http://www.youtube.com/watch?v=w0ffwDYo00Q

Thats all from me for this week untill the next time take it easy and thanks for reading,
George.

Friday, 25 January 2013

Jaguars, Madagascars Mighty Mitsinjo and a little from myself.

Hello and welcome to the long overdue latest edition to my blog, I hope you had a fantastic Christmas and New Year. Time has been limited with the strain of preparing for exams taking its toll and therefore my priorities have had to be academic, but I am back now and hopefully this edition will be worth the wait. We are lucky to have a guest article written by Matt Ward on Madagascars Mighty Mitsinjo, which resolves around the amphibian crisis and the work being done to try and save them, Matt is extremely knowledgeable on the subject having himself travelled to Madagascar and has also given many lectures around England on the subject, needless to say his report is well worth a read. Other sections include my observations on anything involving the natural world and the ten facts on this time focuses on one of the biggest but also one of the most elusive members of the cat family, the Jaguar, as ever I hope you enjoy the blog.

                                                      Ten facts on : Jaguar Panthera onca

1) The very name Jaguar originates from the native Americans word Yaguar, which translated means "he who kills with one leap".

2  Jaguars break the trend from many other cat species as a result of their tolerance of water, in fact Jaguars are excellent swimmers and will even do some of their hunting in water.

3 The diet of the Jaguar is widely varied, prey species include ;Fish, Turtles, Caimans, Birds,Deer, Peccaries, Capybaras, and Tapirs.

4 The range of the Jaguar has significantly decreased over time, once found to roam from the southern tip of America right down down to the northern end of the region surrounding the U.S -Mexico border, nowadays however the only large populations of the species can be found in small regions of Central and South America in particular the Amazon basin.
 
5 The major threats facing Jaguars include habitat destruction, which then has a knock on effect to how Jaguars hunt as they are sometimes forced to encroach onto cattle ranchers land, sometimes taking their livestock. This then leads to conflict as the cattle ranches retaliate. Jaguars are also persecuted for their beautiful fur, which has played a huge part in the decline in their population.

6_ Jaguars are closely related to Leopards Panthera pardus, however they are both heavier and sturdier than them, and it has been said that Jaguars have the most powerful bite out of all the big cat family.

7 Like fingerprints are unique to humans the rosettes which appear on the Jaguars fur coat are also identical to them, this helps to provide excellent camouflage. It has been noticed that Jaguars who inhabit denser rainforest, tend to be be both smaller and size and darker in colouration than individuals who prefer to spend greater amounts of time in more exposed, open areas.

8) Male individuals territories may overlap with numerous females, however they are fiercely territorial with other males. Marking of their territories may be done through three main ways of defining the borders of their territory to potential intruders through scent marking, visual signals such as scratching on trees and through vocal communication.

9 Cubs are usually born between the months of December and March however it is not unusual for them to be born at other times of the year. Usually the number of young born is two to three and are born blind. Just after  two weeks  they open their eyes for the first time and rely on their mother solely to provide them with food for the first six months of their lives, after which they will start to follow their mother on hunts. It will take at least another six months however for them to start to look for a territory of their own.

10) The Jaguar is listed by the IUCN as a species which is threatened in its surrounding environment, it is estimated there are 15,000  thousand wild individuals left prowling the rainforests.


http://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=5WaCx-aZJWWlXM&tbnid=tmrVFk6js3mfpM:&ved=0CAQQjB0&url=http%3A%2F%2Fanimals.nationalgeographic.com%2Fanimals%2Fmammals%2Fjaguar%2F&ei=VMYCUajwMoSp0AWZ0YCwCQ&bvm=bv.41524429,d.d2k&psig=AFQjCNGAA9JccWGi4LP-DawX30rMFFydVQ&ust=1359222732107378
All facts in this section were originally sourced from : a-z animals and National Geographic.


                                                           Madagascars Mighty Mitsinjo - By Matt Ward

In the town of Andasibe, Madagascar, there is a new facility built in 2011 for the protection of the countries extremely rare amphibians. The Mitsinjo (Mit-sin-zoo) association, meaning community in local Betsimasarek language, was born from the desire of local people wanting to conserve the wildlife of the rainforest that the government wasn’t prepared to and the influence of some western scientists with the drive to help. After the purchase of some land and a few years of guiding tourists a German conservation called Rainer Dolch helped the association to improve their conservation work by starting the reforestation of large empty patches of land with natural primary forest trees grown in their own nursery. In 2011 however more foreign scientists were brought in to help the association with the protection of their local amphibians. Whilst the local guides were very knowledgeable about how to find these species they didn’t have the biological knowledge of how to keep them or recognise when they were under threat.

For the past 50 years a killer fungus has been spreading across the globe killing all amphibians in its way and the spread has sped up in the past two decades. This fungus called Bataracachytridium dendrobatidis (Chytrid for short) is found in every country with amphibians except for 3, one of which is Madagascar. Due to the aquatic lifestyle of the fungus, its hyper aggressive spread speed and its contagiousness if it was to get into the rainforest of Madagascar it would almost certainly cause catastrophic damage and kill at least 80% of the national population.  This is one of the reasons that the global conservation group the Amphibian Ark helped to initiate the installation of an amphibian conservation centre in Madagascar. Madagascars wildlife is under massive threat from destruction of habitat and illegal poaching and the threat of a fatal fungus could push the frogs (Madagascars only amphibian order) over the edge, 98% of which are endemic and many are even locally endemic to areas of only a few hundred hectares.

DSC_0226.JPG

At the end of 2010 construction started on the facility in the heart of the rainforest with the idea being a three roomed concrete laboratory. The construction was finished in May 2011, with one room designated for the rearing of frog food (3 cricket species and fruit flies), one room to be a breeding room with terrariums for the frog populations and a quarantine room for new animals, research, hatching and sick animals. A team of 7 local technicians were trained by some of the world’s amphibian experts in the building of terrariums, breeding of live prey and monitoring frog behaviour to detect disease and stress. After 2 weeks of the building being completed the first populations to be introduced were all local, non-endangered species, in order to develop a smooth operating system and help train the native technicians. After only 4 weeks with the initial stock of 5 species, 4 of them had produced egg clutches with all females laying. The tadpoles were then used in a research project to identify the best food source to increase survivorship and vigour. After a few months in operation the government then announced that they had sold a large part of forest to the mining company and therefore were going to have to relocate some frogs which came into the new Mitsinjo facility. This turned out to be 140 critically endangered Golden Mantella, a species only found in 4 areas of the eastern rainforest marshes. Although the facility was fairly new they took on the new population and are now successfully breeding them with intent to release back into the wild upon location of ideal habitat. The association also do bi-annual disease surveys to try and find any cases of chytrid before it is too late and also population surveys to keep up to date information on the wild species. Thanks to the rapid expansion of the Mitsinjo associations conservation work and their collective knowledge and experience of the countries wildlife they have made lots of influential friends. Including being used by the BBC multiple times, ITV, National Geographic, Arkive and a host of zoos around the world including Durrel and Henry Dorley Omaha and being recognised by the conservation organisations in awards for their work against the destruction of this biodiversity hotspot.
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                                                A final word from myself.

Make sure you give the bird life in your back garden all the help you can to get through the cold winter your help will make a big difference to their fortunes. If your patient enough you could be rewarded with some wonderful sightings, two of note in our own garden include a pair of Blackcaps Sylvia atricapilla ( males and females can be easily distinguished between by the colour of their caps as the name suggests, the males is black while the females is a lovely looking chestnut colour).  The other stand out sighting recently was a striking looking Bullfinch Pyrrhula pyrrhula , which I was disappointed to miss out on seeing as they are one of my favourite garden birds.
Has anyone been  watching the rather spectacular new wildlife series on the BBC "Africa" ? Personally one of my highlights of the series so far has to be the amazing scenes of Agama Lizards Agama agama, hunting flys on the backs of Lions Panthera leo! amazing television and of course narrated by Sir David Attenborough, always makes a series extra special, will there ever be someone  who equals his endless list of achievements? probably not.
That's it for this week I hope you enjoyed it and keep an eye out next Friday, for the next edition as from now on I am back to a normal schedule!
Have a great weekend,
George.

Friday, 16 November 2012

A sound of the night and a reptile on the brink.


Hello everyone and welcome to my latest blog. I hope you have had a good week and with the weekend approaching you are looking forward to a well-earned rest! This week I talk about a sound I have heard often but the bird responsible for it has always eluded me and the case of a very rare reptile which faces a uncertain future. As always I hope you enjoy and feel free to give feedback on what you enjoy and what you would like to see improved.




                                                                A sound of the night.




It's late, and the daylight has long been replaced with the black of night, diurnal birds  have sought the sanctuary of a safe roosts well covered by dense vegetation hoping this will be enough to ensure their survival for another night. Suddenly an unmistakable sound which has many times woken me from my sleep pierces the darkness a sharp "kewick" is just one of many variations of vocalisation from the bird in question. That bird is the Tawny Owl, and it's calling in the woodland not far from our house again and it sounds like there is more than one. The more familiar owl noise now accompany it and it really is enjoyable to be able to listen to the secretive private life of the owl as it goes about its nocturnal business, terrorising unfortunate rodents which chose the wrong moment to break cover exposing themselves to the owls lethal talons.

I would love to be able to tell you how gracefully they fly in the wild, but I can't. As often as I have been woken up and kept awake by this nocturnal choir I have not once been privileged enough to catch a glimpse of this mysterious bird of prey.  When I look at the woodland the next morning I imagine where they might be and my main feeling is not disappointment at not yet seeing one, I do feel very grateful however to of been allowed an small insight into their world as natures schedules to not allow for outsiders, so maybe one day if I'm lucky I may just be in the right place at the right time.



                                            Five facts about Tawny Owls Strix aluco.



1)  Female Tawny Owls are 20 -40 % heavier than males and have a wingspan ranging from 5-10 % percent longer.



2) The Tawny Owl is the most common and widespread Owl in Europe (and still I have not seen one).



3) The Tawny Owl feeds on a large amount of rodents, but will also take small birds, frogs, insects and worms.



4) There are an estimated 19, 400 breeding pairs of Tawny Owls in the UK.



5)  An adult Tawny Owl has at least 10 different vocalisations and young individuals 5 different vocalisations.



                            Facts courtesy of the World Owl Trust and RSPB.



                       Endangered Species : Orinoco Crocodile Crocodylus intermedius.



Powerful, prehistoric, intelligent and critically endangered are all words which describe the Orinoco Crocodile, and when crocodiles all over the world face various struggles to survive the knowledge that this species is ranked as one of the most endangered of all the crocodilian family is a stark indicator of the battle the species faces for survival.

Orinoco Crocodiles are found in Colombia and Venezuela inhabiting freshwater riverines in particular as the name suggests the Orinoco River. During the dry season as the water levels drop to very low levels, an example of the crocodiles ability to adapt and survive which has helped them to outlive the dinosaurs is demonstrated. By retreating into tunnels excavated in the river banks, they are able to find the small remaining areas of water enough to help them survive these tough times. Orinco Crocodiles diet varies in relation to size, for example juveniles feed mainly on small fish and invertebrates while adults take much larger prey including land mammals such as capybara as well as birds and larger fish.  During January and February which always coincides with the dry season,  holes are excavated for egg laying where anywhere between 15 and 70 eggs are laid. Such a large number of eggs may be at least partly because of the threat of Tegu Lizards and Vultures. The hatching of the eggs is timed perfectly with the arrival of the wet season and the inevitable rise of water levels.

So what threats face the Orinoco Crocodile? Yet again the recurring theme of human destruction is the main reason a species is in such trouble and this is the case for the Orinoco Crocodile. It's problems really started in the period of 1930-1960 where due to horrendous persecution for their skin which happened particularly in the driest parts of the year at their most vulnerable time due to the ease at finding them in their burrows. Their population has never really recovered from this and the threats which existed them still exist now adding to the already large number of problems facing the species. These include: illegal killing for meat, eggs being stolen, juveniles captured and sold on markets, teeth sold for medicine and of course habitat destruction which has reduced its range to a tiny proportion of what it formerly was. Competition for food and habitat with Caimans are now also causing more problems.

What is being done to help the species?  Currently preservation of suitable habitat is being undertaken in Venezuela, with reintroduction plans underway with further monitoring required. If the same could be done in Columbia to go alongside their experimental release programme these would be huge steps in the right direction. Stricter protection on the species itself against hunting needs to be undertaken however as with a population as restricted as the Orinoco Crocodiles is, every individual lost is a huge blow.

If we do not want to lose a species which belongs to a family of animals which have outlived the dinosaurs then dramatic, determined and prolonged measures need to be taken. If not then once again a species could be consigned to the history books, leaving us with the thoughts that we could have and should have done more to help.



Facts in this article were sourced from the Crocodilian Species List.           



That is all from myself for another week, I really hope you enjoyed it and have a good weekend!

George.                                       








Friday, 9 November 2012

Birds of Prey.

Hello everyone and welcome to my latest blog. I hope you are looking forward to a hopefully relaxing weekend. This focus of this week’s blog is on birds of prey. Starting with an introduction to a section which as the month progresses will go into more detail on Owls. Followed a little on the harsh reality of nature and finished off with the usual endangered section of the blog this time drawing attention to the Philippine Eagle.



                           

                                                                      Owls.

I remember when I saw a Barn Owl in the wild for the first time. Its ghostly wide underbelly even more striking against the dark night sky as it flew effortlessly and silently over the field close to our car searching for rodents unaware of the approaching danger. It was an experience that has always stayed with me and still remains one of my all time wildlife spotting highlights. Over the course of this month I highlight an owl species native and in some cases unnative which inhabit Britain. As you will probably have assumed this week Barn Owls take centre stage, here are some facts you may or may not know about them.



1) The Barn Owl is also known by its other names of White Owl and the Screech Owl.



2) Barn Owls do not hoot they screech which is the reason they have been sometime referred to as the Screech Owl.



3) The diet of the Barn Owl consists of predominately rodents however they will also take young rabbits, moles, birds and frogs.



4) Other noises Barn Owls are capable of making include hissing, snapping and snoring.



5) Barn Owls in North Europe tend to be darker in colour than those in Britain.



Facts sourced from BBC Nature.


 
                                     
                                                     A harsh reminder of nature.

Looking through stories  about our birds of prey here in Britain I came across this from summer just passed,  reminder that nature can seem harsh.



http://www.dailymail.co.uk/news/article-2165920/Caught-camera-The-shocking-moment-Osprey-chick-plucked-nest-buzzard.html



Although the loss of a young individual of a species struggling to establish a large breeding population in Britain, is always sad this is the sort of occurrence that happens in nature on a regular basis. Anyone feeling anger towards the Buzzard over it’s act of predation, it's important to remember the Buzzard isn't doing it for fun, it's doing it to survive. This leads me to my main grumble about the article, although the pictures are fascinating, the phrase “the shocking moment” irritates me. It's not shocking it's a completely natural act of nature and a reminder that in the wild there are no rules or guidelines for animals to follow, and the sooner people accept that the better.





                                              Endangered Species : Philippine Eagle.



The Philippine Eagle is ranked by the IUCN as critically endangered. This is unsurprising as it has an incredibly small population as a result of a severe decline over the past three generations. Again unsurprisingly, one of the main reasons behind this decline are man made problems in this case severe deforestation. Is anyone noticing than man made problems seem to feature heavily in this section of the blog?



The Philippine Eagle is a huge bird, in fact the largest living Eagle in terms of length in the world. On top of this it has a wingspan of two meters and have a greater surface area than any other Eagle.



As the name suggests, the Philippine Eagle is endemic to the Philippine Islands with the largest part of the population of the species is thought to be in Mindanao where an estimated 82 -233 breeding pairs live. It is thought there is a maximum of 750 individuals left in the wild.

The Philippine Eagle has a habitat of choice is typically primary dipterocarp forest this is especially the case in terrain where the incline is steep. They can also less frequently be seen in secondary growth and gallery forest.



The  diet of this species is varied proving previous theories that it fed exclusively on monkeys incorrect. Such was the assumption it was even given the additional name of Monkey- eating Eagle. More recent research however has proven that prey preference differs from island to island for example the Eagles of Mindanao are Philippine Flying Lemurs, however on other islands where the species are less abundant other prey species including small mammals, reptiles and birds, such as snakes, monitor lizards, hornbills ,and owls. There have even been reports of dogs and young pigs being taken. The eagle does of course hunt monkeys as well and it has been documented to hunt cooperatively in pairs when attacking a troop.



The threats to the Philippine Eagle are unfortunately large, very prominent and once again largely thanks to the interference of man. As a result of one pair of breeding Eagles needing a range of twenty five to fifty square miles to successfully raise a chick, they are hugely at risk of deforestation. Of which there is plenty.

The forest they depend on is lost at an alarming rate, exposure to pesticides affect breeding success rates mining and of course the main example of how mans greed continues to destroy the natural world possibly forever poaching is a massive threat. The birds are also occasionally accidently caught in traps by local people intending to catch deer.



The future is not bright for this magnificent bird but efforts are being made to change this the Philippine Eagle Foundation see link below, are currently doing fantastic work trying to save a species  which desperately needs our help through successful captive breeding, and finding ways such as adoption to fund more research into saving the Philippine Eagle.  Protected lands such as the Cabuaya Forest have recently been established although sadly the large majority of the population still live on unprotected land. Killing a Philippine Eagle is now punishable by up to twelve years imprisonment under Philippine law a large deterrent which will hopefully prove successful.




That’s it for this week I hope you have a good weekend and I will check in again this time next week !

George.