The last couple of weeks, I've noticed some Yellow-rumped Warblers which
appear to have very pale yellow throats - about as pale as a Post-It
note (looking around my office for something to compare it to...).
Others have bright white throats or brilliant yellow throats --
obviously Myrtle's and Audubon's races respectively. Are hybrids
common?


== Michael Hobbs
== Redmond WA
== mikeho at microsoft.com