April 20, 2011:
- large push of raptors including Broad-winged and Red-shouldered Hawks and several Ospreys
- first Northern Rough-winged Swallow of year; also large numbers of Tree and Barn Swallows
- first Blue-gray Gnatcatcher
- first Common Green Darner
- first Ruby-throated Hummingbird
- first Palm Warbler
- leaves emerging on native Amelanchier and Viburnum shrubs
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