Hi All, The rate of nocturnal movements of warblers almost doubled over the previous week at Carleton, Yarmouth County, Nova Scotia. There was a total of 240 calls and at least 181 individual birds at a rate of 34 calls per night. Warblers composed 99% of the calls recorded. Despite a continuing variety in species composition, early migrating warbler species dominated the count. The most common species were American Redstart (69 calls), Black-and-White Warbler (45 calls), and Yellow Warbler (34 calls). The numbers of these three species seemed to indicate true, south-bound migration, rather than post-breeding dispersion. A summary list can be found below.
The closest weather radar that provide online base reflectivity and velocity data while operating in clear air mode are in the state of Maine, at Caribou and Portland. Both of these radars are located approximately 350 kilometers from the monitoring station. The radars showed only a light density of echoes (~60-70/cubic km) during the week. Velocities indicated that there was some bird migration on each night when there was no rain. Previous reports and more information can be found at: http://www.johnfkearney.com/Carleton_YarmouthCounty_2016.html. John Estimated Call Minimum Species Count Individuals* American Redstart 69 45 Black-and-White Warbler 45 32 Yellow Warbler 34 28 Unidentified Warbler 18 15 Chestnut-sided Warbler 13 10 Magnolia Warbler 10 9 Northern Parula 10 7 Blackburnian Warbler 9 8 Black-throated Blue Warbler 9 7 Unidentified Warbler Genus Setophaga 7 6 Tennessee Warbler 6 4 Canada Warbler 3 3 White-throated Sparrow 3 3 Bay-breasted Warbler 1 1 Black-throated Green Warbler 1 1 Cape May Warbler 1 1 Northern Waterthrush 1 1 Total 240 181 * Calls that are more than one minute apart plus calls that are less than one minute apart divided by three and rounded up to nearest whole number -------------------- John F. Kearney 120 White's River Road Carleton, Nova Scotia CANADA B5A 5R2 -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
