The other specialty of the park happens to be Cave Swallows, which during invasions can often be seen hawking insects over the treatment plant, particularly on colder days. A few Northern Rough-winged Swallows attempted to winter here a few years ago.
This month 10 different warbler species have been recorded at the park so far...not bad for November in New England. Today I had single TENNESSEE and ORANGE-CROWNED WARBLERS plus a late BLACKPOLL.
This place is now OVERdue for a western vagrant (unless you want to count the Cave Swallows). With all the lingering late-fall insectivores, you'd expect a sighting of a western warbler (the state's first Townsend's, perhaps?) or flycatcher by now. Should only be a matter of time...
Here are some photos of a few of this month's birds.
immature Black-crowned Night-heron (Nov 4)