Saturday, August 13, 2011
I mentioned in the previous post that this bird was part of the landbird migration along the river corridor. So how do I know it's a migrant and not a bird that was here this summer? There were few Bullock's Orioles in this area this summer and those in the closest nests (1/4 mile away) had already moved on weeks ago.
In all the pics this bird has it's bill open--it was pretty hot and this is how birds cool off. SeEtta
From the plumage characteristics this bird is a female or immature. The mostly flesh/pinkish colored lower mandible (with rustyish markings) makes me think this may be a juvenile. Birds of North America online calls the lower mandible "bluish gray, dull white at tip and doesn't mention anything about juvenile birds nor could I find anything online or in my books about it. Note: I didn't do any color modification or other editing of these pics with the exception of some cropping to preserve color and shading. SeEtta