Showing posts with label Cornell Laboratory of Ornithlogy. Show all posts
Showing posts with label Cornell Laboratory of Ornithlogy. Show all posts

Thursday, September 8, 2011

The Island (Yard) of Misfit Birds

Things have been hoppin' in Pigeon Town.

Timmy!
As I've mentioned before, I have a resident "special needs" pigeon named Timmy who lives (or at least hangs out most of the time, I don't actually know where he roosts) around my house.  Timmy was briefly trapped in our attic last year when we evicted his parents and sealed up the opening.  We were sure everyone was out, but it turns out Timmy wasn't, and was trapped in the attic for several days.  I'd feel even if I hadn't noticed before that Timmy was a weird bird.  Special.  At least I know that the trauma we accidentally inflicted on him is not the cause of his oddness. 

Timmy's Plus One
Timmy (who despite his behavioral issues is a big, beautiful and healthy looking pigeon) now has a friend.  Who I call "Timmy's Plus One".   Of course I can't tell a male a pigeon from a female pigeon even if they're dressed for the prom, so I don't know whether Timmy is male or his friend is female, or the other way around.  They could both be males or both be females for all I know (not that there's anything wrong with that).  But pigeons are known to mate for life, and these two seem to be a couple. 

(I've read speculation on how birds recognize each other and distinguish gender -- in many birds it's easy because differences in coloration or size are so striking -- but in birds like pigeons and crows, who don't show much sexual dimorphism, it's more of a puzzle.  Mammals do it mainly by smell, and by visual cues in some species, for instance primates whose noses are not good.  Most birds have only a rudimentary sense of smell -- so there must be other kinds of cues.  I would suggest looking at them more in the infra-red part of the spectrum, which we can't see naturally but they can.  Could it be they have hidden patterns on them like some flowers do, or that the oils in their feathers show some difference in those wavelengths?  I haven't been able to find any photos of birds in the infrared, but I'd be curious to know if anyone has explored it.)

Lately, there have been two other pigeons dropping by (I unfortunately do not have photos of them yet).  They are both unusual in their own way -- mostly white with gray mottling.  One of them is almost albino. 

I have observed -- and have also read -- that pigeons sometimes seem to shy away from the "odd" members of their flock, and that unusual coloration may make a bird unwelcome. But I'm not totally sure that's true.  The Cornell Laboratory of Ornithology, as part of their Celebrate Urban Bird project has Project Pigeon Watch, a chance for citizen scientists to contribute their observations, and one of their goals is to study how different color patterns among feral pigeons effect mating.  Anyway, these two pigeons have been hanging around lately and I started wondering if maybe our yard was becoming a sort of island of misfit birds.  Like Timmy, these guys might be less at home in the big flocks that hang out down the road in White Center.  I've often observed the two mottled pigeons eating on my rail together, and I've seen them eating along with Timmy's friend.  I've never actually seen Timmy eating with them though.

Saturday, I finally saw them together, and it got pretty exciting.  First, I saw Timmy's friend on the rail with one of the white birds.   They were eating together like usual, and then suddenly a fight broke out.  Timmy's friend and the mottle pigeon were going at each other up and down the rail for about a minute, and then they both flew off. 

I thought maybe the food was getting low and that sparked the argument.  So I went out and put more food on the rail.  A little while later Timmy and his friend came back and while they were eating the mottle pigeon showed up again.  This time, Timmy got into it with him.  It even looked like Timmy attacked first.  There was a brief squabble and then all three birds took off.  I was standing in the front door watching and one of the pigeons -- I think it was Timmy -- flashed by just a few feet from my face with a loud crack of his wings.  Timmy, who is by far the biggest of the pigeons that visit here, seemed to have things well in hand.

That wasn't the end of the excitement though.  Timmy and his friend came back a little later.  I was watching from inside, under the window blinds.  I could see Timmy, clearly recognizable by his banded wings, and it seemed like there was another pigeon too -- but a very small one.  I got closer to window and caught my breath.  It wasn't a pigeon at all.

It was a Steller's Jay.
This is the Jay that was eating with Timmy.

Last winter, and well into the spring, the Jays were frequent visitors to my yard.  They come swooping in with their wings spread wide, looking like a caped superhero and announcing their arrival with loud screeches.  I haven't seen them in a while, but all day Saturday I kept hearing them.  When I was out for a walk with my dog Lulubelle, and when I took my "puppy" Zeke to the park, I could hear the Jays but I never saw them.  And now here he was.

So, fighting pigeons and then Timmy sharing dinner with a Jay -- that's lot of adventure for one Saturday afternoon.

For previous posts about Timmy and pigeons see "Around the Yard and Around the Web", "Pigeon Watch" and "Timmy!"


You can also enjoy my recent article "Crazy Flickers" over at 10,000 Birds.  They have a great site, well worth checking out even if I wasn't included.   



Birdland West readers will be interested in my review of Feathers: The Evolution of a Natural Miracle by Thor Hanson, which is posted now at Books and Beasts.   It's a great book and a must read for all bird lovers.  Check out the review here.




 (Many of the original photographs featured on Birdland West are available for sale as art quality prints.  You can check out all of our offerings at http://AlexWashoe.imagekind.com.  If you see an image here that does not show up on our Imagekind site please contact me directly and I'll let you know about availability.)

Wednesday, July 27, 2011

Pigeon Watch

I was talking about pigeons. (Here)

The common pigeon -- the Rock Dove or Rock Pigeon familiar to city dwellers around the world -- is one of those ubiquitous creatures -- like crows -- that we see so often that we almost don't see them at all.  Not as flashy or charismatic as crows, they have been with us for a very long time.  Though most of us don't see them this way, pigeons belong to a select group of animals -- along with dogs, horses and possibly cats -- that have been companions of humans and contributors to our civilization for thousands and thousands of years. 

Ballard (Seattle, WA) June, 2009
Just consider this:  all the Rock Pigeons around the world are the descendants of domesticated birds. We know that, between five and ten thousand years ago, Egyptians were using pigeons to carry messages up and down the Nile. We also know that there were already feral pigeons living in the streets of ancient Rome, pretty much the way they do now. They were introduced into North America probably in the 1600's from Europe, and the Army was still using them to send messages as late as World Wars I and II.   Properly speaking, they are not wild birds; they are feral -- domesticated animals that have returned to the wild.  Sort of.  You don't find many Rock Pigeons out in the forest (where their wild cousins do still live -- in this area, we have Band-Tailed Pigeons and Mourning Doves for instance).  They are urban animals.  Or, if you prefer (I do), civilized.

Pigeons: The Fascinating Saga of the World's Most Revered and Reviled BirdMany of these stories, and much more, are related in Pigeons: The Fascinating Saga of the World's More Revered and Reviled Bird by Andrew D. Blechman.  I first read this book a couple of years ago, and have gone back to it many times to check on certain anecdotes or re-read certain stories.  It is a rich, fascinating popular science book that not only gives us the history of the bird, but also introduces us to the incredible cast of characters and subcultures that have grown up around pigeons in the present day.  From weird pigeon hunts to racers to oddball environmentalists to good old fashioned breeders.  The pigeon has inspired more hate and love than just about any other bird (People as diverse as Charles Darwin, who bred pigeons while developing his theory of natural selection, and Mike Tyson, who has been a lifelong lover of pigeons, raised them as a child, and reputedly had his first fight with an older boy who killed one of his birds.)

TheCornell Lab of Ornithology has a special "Urban Bird Project" and as part of that project they have "Operation Pigeon Watch".  Now, next to watching dogs play, and seagulls fly, and the endlessly inventive antics of crows, there are few things I find more entertaining than pigeons. (Okay, Jennifer Aniston, but that's a whole different topic.)  So when I found out about project Pigeon Watch, I was hooked.  As I've mentioned before, I have a resident pigeon at my house who I call Timmy.  I call him a special needs pigeon because he seems to be a little ... well, handicapped.  But he's a big, beautiful healthy looking pigeon none-the-less.   Lately, Timmy has been showing up with a friend.  I think of "her" as Timmy's girlfriend, but of course I have no idea of either of their genders.  She's smaller than Timmy, with darker colored wings. 

Timmy!
There are something like 28 "morphs" -- or different color patterns -- recognized for the feral Rock Pigeon, but Cornell's Pigeon Watch has narrowed it down to five.  Timmy, for instance, is a "checker" because of the checker like pattern on his wings.  Checker's can vary from light gray with a little black, like Timmy, to much darker patterns.  I believe that Timmy's friend (who is shier and harder to photograph) might also be a checker, but with much darker wing patterns than Timmy's.


Timmy's "parents", West Seattle, summer 2010
One of the goals of the pigeon watch program is to observe mating habits among pigeons and learn which morphs mate with which others (to determine if they show a preference).  I had a chance to observe Timmy's parents, when I first moved here -- the birds I assume were Timmy's parents because they were all sharing a nest -- and I believe I witnessed courting behavior several times.  Pigeons court throughout the year, although (according to Cornell and other sources) they are more likely to mate in late winter or early spring.  Once they mate though, they mate for life.  I don't have the opportunity to observe the rest of the family any more, as they are all gone.  But I will be watching Timmy and his friend whenever I get the chance.



If you like Birdland West, you might also want to check out our sister blog Books and Beasts, which focuses on reviews of books about animals and related topics.


(Many of the original photographs featured on Birdland West are available for sale as art quality prints.  You can check out all of our offerings at http://AlexWashoe.imagekind.com.  If you see an image here that does not show up on our Imagekind site please contact me directly and I'll let you know about availability.)