Date: 6/22/18 11:30 am From: Jane Stein <jeshawks...> Subject: Re: [VTBIRD] Mansfield week 4
Chris, do you think this absence of cone crops mean we're likely to see waves of northern bird species again this winter, or do you think it's largely restricted to south of the border?
On 6/22/2018 2:09 PM, Chris Rimmer wrote: > This week's Mansfield session marked VCE's fourth visit to the mountain in > 2018. A crew of visitors, including a lively group from Otter Creek > Audubon, were treated to a solid assortment of mist-netted birds, though > fewer surprises than last week. Weather was cool and dry. The avian nesting > season is clearly in full swing, as females of all species showed > well-developed incubation/brood patches. Small groups of siskins are still > present on the ridgeline, though crossbill numbers seem reduced -- we > caught juveniles of both species. I did finally hear a distant Winter Wren > sing, but their abundance is distinctly low, as is that of Swainson's > Thrush (back to numbers of 10-20 years ago). We had our first red squirrel > sightings of the season, with two individuals. This year's cone crop is > non-existent -- I have yet to see a single fir or spruce cone. > > Included among the 57 birds we captured on Tues-Wed: > > Least Flycatcher 1 female with regressing brood patch > Red-breasted Nuthatch 1 male > Bicknell's Thrush 12 2 new yearling males, 10 within-season retraps > Swainson's Thrush 2 2 within-season retraps > American Robin 4 2 new, 2 within-season retrap > Blackpoll Warbler 11 4 new (3 males), 2 returns (male from 2016, > female from 2017), 5 within-season retraps > Black-throated Blue Warbler 1 female > Yellow-rumped Warbler (Myrtle) 4 males: 1 new; 1 return from 2017, 2 > retraps > Dark-eyed Junco (Slate-colored) 3 1 new female, 1 return male banded > as hatch-year on 2 Aug 17, 1 retrap > White-throated Sparrow 13 9 new (8 males, 1 female), 4 within-season > retraps > Purple Finch 1 new yearling male; we've now banded 8 this year vs. 1 > in all of 2017 > White-winged Crossbill 1 free-flying juvenile, flight feathers >85-90% > full-grown; likely a locally-hatched bird > Pine Siskin 2 free-flying juveniles > > ________________________ > > Chris Rimmer > Vermont Center for Ecostudies > PO Box 420 | Norwich, Vermont 05055 > 802.649.1431 x202 > http://vtecostudies.org/ > > <http://vtecostudies.org/> >