Date: 6/20/19 2:44 pm From: Gregory Hanisek via CTBirds <ctbirds...> Subject: Re: [CT Birds] Greenwich Point YB Cuckoo
Good questions by Will, and appropriate given the CT Bird Atlas currently under way. It's always good to bear in mind that the presence of a bird of a species known to breed in given area does not guarantee that the individual is actually breeding. The Atlas offers a long list of criteria and circumstances that help participants determine if breeding is confirmed, probable or possible. It's well known there are excess males of many species ready to take over a territory that comes open for any number of reasons.
Regarding cuckoos specifically, they're species known for uneven distribution from year to year, primarily because they depend on a food source subject to periodic outbreaks (large hair caterpillars such as Tent Caterpillars and Gypsy Moths).
Chris Elphick may have some comments regarding cuckoos and the ongoing Atlas.
Greg Hanisek Waterbury
On Thu, Jun 20, 2019 at 4:53 PM William Schenck via CTBirds < <ctbirds...> wrote:
> Greenwich Point Park, Greenwich — while birding earlier this afternoon, one > of the first birds I observed was a Yellow-billed Cuckoo foraging on > insects and caterpillars in the trees of the parking lot. An especially > interesting sighting of this uncommon CT breeder as we are well into the > nesting season... as far as I understand, this species usually breeds in > more inland locations with mature, diverse forest. Perhaps this bird was > foraging far from its nesting sight? Any theories/history on the breeding > of Yellow-billed Cuckoos in coastal or wider CT are welcome. Last I > checked, the bird was not there, though it covered a wide area while > foraging. > > Will Schenck > Connecticut Young Birders’ Club > Greenwich > _______________________________________________ > This list is provided by the Connecticut Ornithological Association (COA) > for the discussion of birds and birding in Connecticut. > For subscription information visit > http://lists.ctbirding.org/mailman/listinfo/ctbirds_lists.ctbirding.org > _______________________________________________ This list is provided by the Connecticut Ornithological Association (COA) for the discussion of birds and birding in Connecticut. For subscription information visit http://lists.ctbirding.org/mailman/listinfo/ctbirds_lists.ctbirding.org