Tuesday, September 29, 2009

Warbler wave, Sept. 27-30

Despite the very strong winds of September 28-29, there have been large numbers of warblers and other migrants in the woodlots close to Lake Erie. The BSBO main banding station (at the Navarre unit of Ottawa Natl Wildlife Refuge, about five miles east of Magee Marsh) had 16 species of warblers on Monday, Sept. 28, with Blackpoll, Cape May, and American Redstart leading the charge. Species composition was similar on Tuesday; the unsettled weather of Monday night probably prevented many birds from leaving. At this point it appears that the numbers of birds present on Wednesday, Sept. 30, should be good as well, and with the winds diminishing, they should be easier to see.

At this season, as I've mentioned before, it's essential to find the little mixed flocks of birds. On Sunday Sept. 27, when I visited the west end of the Magee Marsh boardwalk, I spent 20 minutes not seeing or hearing a single migrant -- and then suddenly I was surrounded by a flock that contained at least 17 Blackpoll Warblers, 4 Cape May Warblers, 2 Nashville Warblers, a Yellow-throated Vireo, and various other migrants. If I had given up after the first 15 minutes, I might have thought there were no birds there at all.

No comments:

Nature Blog Network