Date: 4/30/18 7:22 pm From: David Scott <dscott0313...> Subject: [MASSBIRD] Birdcast
I've never quite figured out how to take advantage of radar info to predict bird migration (mostly I just try to go birding as much as possible in May), but Cornell has a new website up this year called BirdCast, which combines radar data and weather forecasts to predict the level of bird migration across the country over a three night period.
Migration has seemed slow so far this year, at least for songbirds. Shouldn't there be flocks of yellow-rumped warblers by now? The BBC trip at Mt Auburn last year on April 29th last year had 43 species, with 6 species of warbler including an estimate of 50 yellow-rumps, a Wood Thrush, a G-c Flycatcher and Catbirds. Today's collective Mt Auburn reports on eBird suggest that two Pine Warblers and a single Yellow-rump were present.
The birdcast map for the last couple of days of April shows "intense spring migration traffic" up the central flyway, and almost nothing moving up the east coast. Things look more interesting for us on the nights of May 1st and 2nd. "Moderate to heavy bird movements coming soon to the East Coast."