Rose-breasted Grosbeak (RBGR) migration is in its last few days here in North Central Florida. This recent season has seen the greatest amount of RBGR feeder activity that we've ever observed, at least during fall. At some point during the peak of migration, I estimated that about half of all feeder systems in the Alachua County area were hosting at least one RBGR. There were reports of as many as 10 individuals at one time. The numbers might have been even more significant if females were as easy to identify as males or if immature males didn't look like either (or both) females and males. This video features two adult female RBGR although I'd love for somebody to demonstrate that either of these birds is either male or immature. In any case, there are characters that distinguish them from each other. They are relatively subtle. This is great practice for your skills as a backyard birder. How many distinguishing features can you find in these two birds?
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