The complete, but thin, cloud cover with a temperature in the low 50s should have made for a good birding day; however, a brisk northwesterly wind made it feel much colder, and many of the smaller birds were hunkered down. Nevertheless, I logged 21 species between 9 and 10 this morning on the downstream and Glenthorne Loop trails, and added a Starling on the upstream trail. Highlights from this morning were the new season arrival of Tree Swallows, and Bluebirds were aggressively protecting their nesting boxes. There were two Red-tailed Hawks, one of which was doing aerial combat with a Crow, and I saw a Swamp Sparrow - a fall through spring visitor that I haven't seen for a few months.
Red-tailed Hawk and American Crow
This morning's list (22 species):