[SBB] WCS-GCS hybrid?

[Kenneth Lajoie <[[email protected]]>]

An interesting migrant flock of white-crowned and
golden-crowned sparrows visited our yard in Mewnlo
Park yesterday afternoon. Most of the birds were
adult-plumage WC and two were adult-plumage GC: the
resident flock is larger and has a few birds still in
imature plumage. One of the birds in the migratant
flock had neither typical WC nor GC plumage. It's
entire head was very light, yellow in front and white
in back, with two very thin black head stripes. It had
no black eye stripes. We suspect this bird might be a
WC-GC hybrid, or maybe a WC-WT hybrid. This bird is of
interest because recent DNA data suggest these two
species (WC and GC) might be variants of the same
species. Has anyone seen a similar bird? 

Take care,  Ken and Andrea Lajoie

PS: The WC and GC flocks should be heading north any
day now. This break in the weather might be the
trigger that sends them on their way.

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