This is New Hampshire Audubon's Rare Bird Alert for Monday, September 11th, 2017. A female MACGILLIVRAY’S WARBLER was discovered at Odiorne Point State Park in Rye on September 4th, and was seen again on the 5th. It was originally seen foraging low in goldenrod along the Boy Scout Trail. It was relocated on September 10th and 11th along the bike trail just north of the fresh water pond in an area of dead sumac and goldenrod. A YELLOW-BREASTED CHAT was seen near the start of the Boy Scout Trail at Odiorne Point State Park in Rye on September 8th and 10th. A CLAY-COLORED SPARROW was seen along the Boy Scout Trail at Odiorne Point State Park in Rye on September 4th, and again on the 9th. It was relocated on the 10th and 11th near the path between the parking lot and the Seacoast Science Center. A DICKCISSEL was reported from the Carter Hill Orchard in Concord on September 7th. Please note that the orchard is closed to the public until 9:00 a.m. 2 BLACK VULTURES were seen with several TURKEY VULTURES over Mount Wantastiquet and Route 63 in Hinsdale on September 11th. A WESTERN SANDPIPER was seen at Foss Beach in Rye on September 5th. A SANDERLING was seen at Lake Sunapee on September 4th. An AMERICAN GOLDEN-PLOVER was seen at the coast on September 8th. A BLACK TERN was seen at the Exeter Wastewater Treatment Plant on September 4th, and a STILT SANDPIPER and 3 NORTHERN SHOVELERS were seen here on the 9th. The Plant is closed to birders during the week and is only open to birders on weekends if there are no workers present. A STILT SANDPIPER, and a GLOSSY IBIS were seen at the Rochester Wastewater Treatment Plant on September 5th. 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. An AMERICAN COOT was reported from Hampton on September 9th, and 1 was seen on the Connecticut River in Hinsdale on the 11th. A GREAT EGRET was seen on the Contoocook River in Penacook on September 10th. A SANDHILL CRANE has been seen on multiple days during the past week in fields along Rollins Road in the vicinity of the Anderson Farm in Rollinsford. It was last reported on September 6th. A YELLOW-CROWNED NIGHT-HERON and 13 BLACK-CROWNED NIGHT-HERONS were seen in the dunes along Route 1A in Seabrook on September 6th. A LEAST BITTERN was reported from World End Pond in Salem on September 9th. A GREAT CORMORANT was seen at the Wilder Dam on the Connecticut River in Lebanon on September 6th. There were a few reports of PHILADELPHIA VIREOS from scattered locations during the past week. A MOURNING WARBLER was seen in Pittsfield on September 5th, and 1 was seen in Peterborough on the 6th. There were numerous reports of migrating mixed-species flocks of WARBLERS during the past week. Highlights included numerous CAPE MAY WARBLERS, TENNESSEE WARBLERS, and BAY-BREASTED WARBLERS reported from scattered locations. An OLIVE-SIDED FLYCATCHER was seen in Penacook and 1 was seen in Jackson, both during the past week. A LINCOLN’S SPARROW was seen in Penacook on September 10th. RED CROSSBILLS were reported from Sunapee, Bartlett, Bethlehem, and Nottingham during the past week. At least 8 RED CROSSBILLS and 8 WHITE-WINGED CROSSBILLS were reported from the summit of Pack Monadnock in Peterborough on several days during the past week. A COMMON SHELDUCK of unknown origin was photographed in Rye on August 13th. It has been seen every day during the past week in pools located in the salt marshes on the west side of Route 1A just south of Odiorne Point State Park in Rye, and was last reported on September 10th. Speculation is that this may be an escaped captive-raised bird. However, there is also the possibility that this is a vagrant wild bird. The duck refuses to comment so we will probably never know its true origin, but it is free for all to admire. There was a report of 2 FISH CROWS from Key Road in Keene on September 8th. COMMON NIGHTHAWK southbound migration continues, and there were several reports during the past week. Highlights included: 1,300 in Amherst on September 5th, and nearly 700 in Concord on the 6th. 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 2,300 raptors and Carter Hill has reported over 700 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. 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