While glancing out the window into our backyard last week, a member of the B and B team spotted a bird she had never seen before. It looked and acted like a sparrow, foraging around in the drought-parched remnants of our lawn, but it was very palepractically white. Nothing she was familiar with, and certainly nothing I was familiar with either.
Fortunately, her quick thinking resulted in a few photographs.
Upon seeing the first picture, I threw out the idea that this was some kind of "freaky house finch." Later, we noticed the small size relative to a Northern Cardinal in one of the pictures. That would be make it too small even for a freaky house finch. Then I noticed the solid gray breast, which reminded me of the chipping sparrows that so often visit our yard in huge flocks. With the information, and photographic confirmation, that, indeed, this bird was hanging out with, and acting just like, the chipping sparrows, we changed our amateur diagnosis to "freaky chipping sparrow."
A bird-expert friend of ours suggested this is likely what is known, more formally, as a leucistic bird. It is lacking much of the pigment that gives its cousins their normal coloration.
It's been a few days and we haven't seen this odd-colored sparrow again yet. Given his bright white topside, I suspect he may have been relatively easy prey for a hawk, owl or some other predator. He blends in quite well with the gravel in our garden, as in the pictures above. But amongst the brown, dry grass that the sparrows love to hang out in, this bird would stand out dramatically, while his compatriots would be nearly invisible.
But we'll keep an eye out hoping to see it again.
What an interesting bird. I'm so glad that you were able to get a photograph. I hope it makes a return visit.
Posted by: Rexroth's Daughter | February 16, 2006 at 12:38 PM
s/he sure stands out in the crowd huh? leucistic birds usually don't have very long life spans (for the reasons you mention) but I'll be rooting for this lil dude. Thanks for sharing :)
Posted by: Cindy | February 16, 2006 at 05:00 PM
Fascinating bird - I've seen similarly "freaky" Fox Sparrows in Vancouver a couple of times, and - if you've a minute to spare - I posted some photos of a very blotchy Cactus Wren on my blog a while ago (at http://www.charliesbirdblog.com/~charlie/cactuswren/cactuswren.html). Like you I wondered how on earth such a conspicuous bird had managed to survive the sharp eyes of a local hawk...
Posted by: charlie | February 17, 2006 at 03:47 AM