This is New Hampshire Audubon's Rare Bird Alert for Monday, September 18th, 2017. 2 CASPIAN TERNS, an adult and a juvenile, were seen from the Swazey Parkway together on the Squamscott River in Exeter on September 17th. A single CASPIAN TERN was reported from the same area on the 18th. An adult LESSER BLACK-BACKED GULL, and an apparent hybrid between a HERRING GULL and a LESSER BLACK-BACKED GULL were both seen along the coast in Hampton on September 16th. A SANDHILL CRANE was seen in fields along Rollins Road on September 13th. A YELLOW-BREASTED CHAT was seen at Odiorne Point State Park in Rye on September 17th. There was an unconfirmed report of a CONNECTICUT WARBLER at Odiorne Point State Park in Rye on September 18th. 2 CLAY-COLORED SPARROWS, a GRASSHOPPER SPARROW, and 2 DICKCISSELS were reported from Woodmont Orchard in Hollis on September 17th. A CLAY-COLORED SPARROW was seen at Hawkin’s Farm in Salem on September 15th, and 1 was seen near the Seacoast Science Center at Odiorne Point State Park in Rye on September 12th. A DICKCISSEL was reported from the Strafford County Farm Complex in Dover on September 17th, and 1 was reported from Seabrook on September 16th. A BAIRD’S SANDPIPER was seen at the north end of Hampton Beach, and a WESTERN SANDPIPER was seen along the coast in Rye, both on September 17th. A RED KNOT and a PECTORAL SANDPIPER were seen along the coast south of Odiorne Point State Park in Rye on September 15th. An AMERICAN GOLDEN-PLOVER, and 14 AMERICAN PIPITS were seen at the Rochester Wastewater Treatment Plant on September 15th. The treatment plant is gated and the hours of operation are 7:30-3:00 on weekdays. If you visit, please check in at the office and be out of the plant by 2:45 so that plant personnel do not have to ask birders to leave. Do not drive on the dikes and do not block the road. The Trails at Pickering Ponds, located east of the plant, are not gated, and are always open during daylight hours. 2 juvenile YELLOW-CROWNED NIGHT-HERONS and 8 BLACK-CROWNED NIGHT-HERONS were seen in dunes along Route 1A in Seabrook on September 16th. 3 more BLACK-CROWNED NIGHT-HERONS were seen elsewhere along the coast on the 16th, and 1 was seen on the Nashua River in Nashua on the 14th. 4 GREAT EGRETS were seen on the Connecticut River in Monroe on September 16th. A GREAT CORMORANT was seen at the Wilder Dam on the Connecticut River in Lebanon on September 12th, and 6 DOUBLE-CRESTED CORMORANTS were seen on the Androscoggin River in Berlin on the 14th. There were a few reports of PHILADELPHIA VIREOS, and there were numerous reports of migrating mixed-species flocks of WARBLERS, all during the past week. Highlights included numerous CAPE MAY WARBLERS, TENNESSEE WARBLERS, and BAY-BREASTED WARBLERS reported from scattered locations. RED CROSSBILLS were reported from Peterborough, Antrim, and North Conway, and a few WHITE-WINGED CROSSBILLS were reported from North Conway, all during the past week. A flock of at least 20 FISH CROWS was reported from Manchester on September 12th. RAPTOR migration is under way with migrating raptors being counted daily at the Pack Monadnock Raptor Migration Observatory in Peterborough, and at the Carter Hill Observatory in Concord. Pack Monadnock has reported over 7,348 raptors and Carter Hill has reported over 3,758 raptors, all since September 1st. The majority of the raptors being seen at this time in the season are BROAD-WINGED HAWKS, but there are also good numbers of SHARP-SHINNED HAWKS, OSPREYS, and BALD EAGLES. Be sure to visit these New Hampshire Audubon staffed observatories this fall season to help out with the counts! This message is also available by phone recording: call (603) 224-9909 and press 4 as directed or ask to be transferred. If you have seen any interesting birds recently, you can leave a message at the end of the recording or send your sightings to the RBA via e-mail at: [log in to unmask] Please put either "bird sighting" or "Rare Bird Alert" in the subject line and be sure to include your mailing address and phone number. The RBA is also available on-line at the New Hampshire Audubon web site, www.nhaudubon.org Thanks very much and good birding. To post messages, send e-mail to: [log in to unmask] Set your e-mail application to PLAIN TEXT ONLY to post messages. To contact the list owner: [log in to unmask] To unsubscribe: E-mail this command to [log in to unmask] UNSUBSCRIBE UV-Birders To change your e-mail address: E-mail this command from your old address to: [log in to unmask] CHANGE UV-Birders [new e-mail address] Web based archives and subscription management are available at: http://listserv.dartmouth.edu/Archives/uv-birders.html