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The Peregrine Fund Notes From The Field

"Notes from the Field" provides frequent updates and pictures from our biologists and students who are working in the field or at our headquarters, the World Center for Birds of Prey.

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Found 7 entries matching your request:

In a Tree

Corinne Kendall — in East Africa Project

Carcasses can be found almost everywhere. Over the course of the migration, thousands will be found in the river. Lions and hyenas often enjoy dragging their kills into the darkest recesses of the bush but more often then not, carcasses are lying out in the open plains just waiting for the vultures to find them. On rare occasions, dead animals can get dragged into trees. In my first year, I had the pleasure of watching two White-headed vultures feed on a treed Thompson gazelle carcass before being pushed off by some tourists who seemed more interested in the carcass than the birds.

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The Unexpected Carcasses

Corinne Kendall — in East Africa Project

It is the wet season (although we haven’t actually had any rain yet) so I wasn’t really expecting to find many carcasses – and I haven’t. But what I have found has been particularly interesting. A zebra carcass with three dogs and a handful of vultures, a hyena carcass with eight Lappet-faced vultures, two lion kills in a day (both of which got eaten by lions, not vultures), and the mutilated mass of a cow that was partially eaten by hyenas, then slaughtered for human consumption, and finally nibbled on by the birds.
With all of these it has been reassuring to find that my observations and my predictions are coming closer together. First, vultures are much more afraid of dogs than jackals, so the implications of having more dogs or dogs in certain areas are very different than more natural predators. Second, vultures will eat anything including hyenas. I have to say watching them eat the hyena did make me a little nervous as you never know how such an animal has been killed. Given the proximity to the villages, though it was in the park, I was a bit concerned the hyena could have been poisoned. But none of the vultures dropped dead and upon closer inspection once the hyena researchers arrived (they gather the heads of hyenas to study the jaws, so I gave them a call when I realized what the carcass was; bit of a conflict of interest since we had to chase the vultures off to salvage the hyena, but seemed like it was going to be more valuable data for them than me) we found that the hyena had huge claw marks around its neck and was likely killed by lions. Third, vultures get very little food from predator kills, especially this time of year when food is so valuable. A large pride of lions (with eight females and seven cubs) killed a zebra and a topi in the same day. They totally abandoned the topi so they could all work together to finish the zebra. Despite this both animals were entirely consumed by the lions by morning meaning that the patiently waiting Hooded vultures got very little to eat. Finally, certain species of vultures are more likely to avoid feeding in settlement areas than others. The cow had been killed just outside the park, right next to my camp (in fact on land owned by Ilkeliani). Herders were thus passing it frequently throughout the day and actually took most of the meat for their own consumption. As a result the carcass was mainly consumed by the less shy species – Hooded vultures, Tawny eagles, and Marabou storks. A few white-backs landed but they hardly ate anything with all the disturbance and Lappet-faced vultures and even a pair of the rare White-headed vulture passed over but were unwilling to land in such uncertain territory. Interesting indeed!

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Find more articles about Hooded Vulture, Lappet-faced Vulture, Tawny Eagle, White-headed Vulture, Africa


Two weeks on the edge. . .of the Masai Mara

Munir Virani — in East Africa Project

Editor's note: The following article is from Rebecca Johnson and Gus Keys, volunteers working in the Masai Mara as part of our East Africa Project

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Find more articles about Bateleur, Tawny Eagle, White-headed Vulture, Africa


What a day!

Corinne Kendall — in East Africa Project

What a day! Let me start from the beginning. I woke up this morning at 5 AM. It was day two of trapping. Day one had been less than successful and I was beginning to wonder if I had been crazy to think that I could trap vultures during the low season. You see when the wildebeest come to Masai Mara in July so do the vultures. For three months, the park is overflowing with carcasses and scavengers. Trapping is made easy during this time, at least trapping African white-backed and Ruppell’s vultures, which are exceedingly common with upwards of sixty birds at each wildebeest carcass. But trapping Lappet-faced vultures is tricky. Only a few birds come to each carcass, they come late which means they are less likely to get trapped (since you have to put the trap down at the beginning and can’t go back and add it to a carcass without scaring all the birds), and they just tend to be a bit more cautious. So I had the “brilliant” idea that the low season would be the ideal time to trap Lappet-faced vultures with fewer African white-backs and Ruppell’s around. But after spending all of yesterday trying to trap with no success, I was starting to worry if I could trap anything this time of year. Nonetheless I awoke with a feeling of mixed panic and hope and set out to trap.

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Find more articles about Hooded Vulture, Lappet-faced Vulture, White-backed Vulture, White-headed Vulture, Africa


Rumble in the Jungle

Corinne Kendall — in East Africa Project

Large carcasses are scarce this time of year. With the tall grass, the herbivores have plenty to eat and the big cats and hyenas have a hard time catching their prey, who have freedom to roam wherever they please. The cheetahs seem to be the only ones having any great success, perhaps because they rely more on speed than stealth. There also aren’t a lot of animals dying this time of year, precisely because there is so much lush food and water to go around. There are still calves being born, some of whom won’t make it and the occasional diseased or injured animal that might keel over. Needless to say, the vultures have to work hard to find their food and when they do discover something, they work even harder to ensure they get a bit.

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Find more articles about Hooded Vulture, Lappet-faced Vulture, Tawny Eagle, White-backed Vulture, White-headed Vulture, Africa


The world is a scavenger’s stage

Corinne Kendall — in East Africa Project

We sat at a carcass for nearly five hours yesterday. Not because nothing came, but because the vultures refused to leave. Jackals found our carcass early and I’m afraid the birds didn’t get much, but it didn’t stop them from coming. We had 11 African white-backed vultures, 5 Lappet-faced vultures, and a couple of Hooded vultures. The white-headed vultures have been noticeably absent but the Hoodeds seem to be coming back this year.

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Find more articles about Hooded Vulture, Lappet-faced Vulture, White-backed Vulture, White-headed Vulture, Africa


Lions, hyenas, and dogs, oh my

Corinne Kendall — in East Africa Project

The sky is speaking. It grumbles and rumbles and crackles, squealing with rage like a toddler unable to get its way. Then finally it breaks like the thunder that accompanies it, the rain crashed to earth and splatters the floor. Luckily, I am done for the day. For some reason, it has been raining mainly in the afternoons. This is good news for me since the rain virtually shuts down vulture activity. As is I have time for my carcass experiments and transects in the morning and seem to get done just as the sky is threatening to fall. It is a hard rain and I sit outside under canvas surrounded by the droplets. Within seconds pools of mud form and I can only wonder what the roads will be like tomorrow. Oh my God, it is hailing!! I can’t believe it. At first, it looked like little frogs were jumping around magically erupting from the soil (which they are, one just joined me under the tent), but that was actually hail. I just got up and grabbed a piece to confirm and indeed, ice just fell from the sky in Africa. Be amazed! But now it is just raining again.

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Find more articles about Bateleur, Hooded Vulture, Lappet-faced Vulture, Tawny Eagle, White-backed Vulture, White-headed Vulture, Africa


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