There has been a lot of discussion on the Pennsylvania Birds Listserv about common redpolls feeding on birch tree seeds. Black birch (Betula lenta) seems to be the most popular with the birds followed by river birch (B. nigra) according to some of the posts. I was wondering if any Ky birders had observed birds feeding on birch seeds? Along similar lines, I noticed a group of migrating warblers gleaning insects from black birch trees on Pine Mountain back in early October at Kingdom Come State Park. One poster to the PA List commented that black birch leaves harbor lots of aphids and are therefore attractive to the birds. Please share any and all bird/birch interactions. Scott Freidhof Rowan County