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grim reaper crossing
I took that online career test, the URL of which has been making the rounds, and my top suggested career was Zoologist. Which is great, because that's exactly why I'm going to school. But that's not the only clue that I'm on the correct career path...

Earlier today, as I was driving through the Marin Headlands on my way home from the Marine Mammal Center, I drove past a meadow. In the center of the meadow I saw a group of turkey vultures very interested in something, so, like any good zoologist, I pulled over to find out what the fuss was about.

The vultures were chowing down on a dead (adult female) deer. There were about a half-dozen adults, 2 juveniles, and a raven. I had never seen a juvenile up close before, and these two looked different than my Sibley ID book indicates they should - Sibley's says the juveniles have an all-black or brown head, while these had a definite white band at the border where their feathers ended and bald head began.


I got a little too close while taking pictures and scared the birds off, so as long as they were gone, I went over to get a better look at the deer, and to see if there was an obvious cause of death. There was not, so I took a couple photos and left. On my way back to the car I found the (cleaned, sun-dried) bones of a bird which had been eaten, and grabbed the few non-broken bones I could find for my collection. Sadly, there was no skull around, and I am not able to identify species from a few feathers or skeletal bones, so I don't know what it was.

Poor Frederick, he's had to get used to me coming home with dead things.

Comments

[info]chomp wrote:
Sep. 18th, 2007 11:36 pm (UTC)
Hee hee!
[info]magpiesf wrote:
Sep. 19th, 2007 12:50 am (UTC)
ring of white could be residual down? cant tell from the photo. as for sibleys - never take anything a field guide says, even the best (which sibley is, for the us), as an absolute. ive seen plenty of turkey vultures with whitish bits like this, ive never really thought too much of it beyond individual variation or leftover downy bits on the tips of feathers of younguns...

as for cause of death - if you could see the carcass from the road, id say the smart moneys on it being a car kill - hit, wanders away to die of internal injuries, doesnt make it far...
[info]g_na wrote:
Sep. 19th, 2007 02:32 am (UTC)
The white looked smooth, not fluffy like down, so I don't think that's what it is. Oh, one of the youngsters also has a bit of white on the leading edge of his folded wing. I'll start paying attention to the birds around there to see if I can find more with white bits.

Great point about the deer being hit by a car - I didn't even think of that.
[info]magpiesf wrote:
Sep. 19th, 2007 02:46 am (UTC)
could just be some white feathers. ravens and crows get the same sometimes, often as juveniles. erratic white feathers are also fairly common with golden eagles. juvenile plumage is about 1 million times more variable than adult, so...
[info]chasbrown wrote:
Sep. 19th, 2007 04:01 am (UTC)
When I took a Vertebrate Natural History class in Texas, they recommended this book as a really good bird field guide:

http://www.amazon.com/National-Geographic-Field-Guide-America/dp/0792268776/ref=pd_sim_b_3/103-8116028-5845422

I have the 3rd edition, but it looks like there's an updated 4th edition. Of all of the field guides I have, this is the one that I actually use. Josh and I figured out something was a magpie just from the really good drawings! I haven't used any other bird guides, so I don't know how the others compare.

Awesome about the dead stuff. I just moved in with a grad student who is also an entomologist. She's stoked that it's okay to have bugs in the fridge in our house and I don't mind.
[info]g_na wrote:
Sep. 19th, 2007 02:24 pm (UTC)
That looks like a great book. I don't suppose that in your studies you've ever seen a field guide for bird skulls, have you? I have one for North American mammals, and that's come in handy to identify remains.
[info]chasbrown wrote:
Sep. 19th, 2007 02:29 pm (UTC)
I don't know one for skulls offhand, but I didn't actually ever take an ornithology course. I'll ask a friend of mine who is into birds and check with him. I'd think that some of it would be in some sort of "tracks, scat, and bones" type of book, but I haven't ever bought one of those.
[info]msjen wrote:
Sep. 19th, 2007 06:35 am (UTC)
Poor Frederick, he's had to get used to me coming home with dead things.

It's okay, because that makes you like a cat. And cats are awesome. :)
[info]g_na wrote:
Sep. 19th, 2007 02:24 pm (UTC)
Hee hee! "I brought you home a present!"

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