North American Birds

VOLUME 68 NO4 2015

A Quarterly Journal of Ornithological Record Published by the American Birding Association. The mission of the journal is to provide a complete overview of the changing panorama of our continent’s birdlife.

Issue link: http://nab.aba.org/i/605532

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N O R T H A M E R I C A N B I R D S 558 Mexico Coloradas 13 Jun (AD), with 7 still there 22 Jun (AM, JM). A single Ring-billed Gull was still at Las Coloradas 22 Jun (ph. AM, JM). Overall, terns nesting on Isla Pérez, Arrecife Alacranes, seem to be doing well. The lowest estimate was just 1000 Brown Noddies 15 Jun (ph. AM, JM); also of interest was a Black Nod- dy seen the same day, a potential frst for the state of Yucatán (ph. AM, JM). Although only 10,000 Sooty Terns were estimated 15 Jun (ph. AM, JM), an estimate of 250,000 to 300,000 was made in early May—much higher than the 28,000 to 30,000 counted in Jul 1986 (JWT). In addition, 200 Bridled Terns were present on Isla Muertos 13 Jun (ph. AM, JM). On an exposed dead coral islet at Punta Sur on Cozumel, 3 Bri- dled Terns were present 27 Jun (ph. RC), exactly where a few were reported in 1984. Least Terns will try to nest almost any place, and the banks of the salt fats at Las Coloradas hosted a colony of 400 birds 13 Jun (AD). Of particular interest is the documented report of nesting Gull-billed Tern at Las Coloradas where an ad. was aggres- sive towards observers 21 Jun and the next day at least 5 young were seen in the same area beg- ging from ads. (AM, JM); there are two previous undocumented reports of suspected nesting on the peninsula. Also in the same area of the salt fats at Las Coloradas were 600 Black Terns 13 Jun (AD), with 18 reported there 21 Jun and 35 on 22 Jun (ph. AM, JM). At least 25 Black Terns spent the summer at Laguna Kanlum, 3 km n. of Muyil, Q. Roo 10 Jul (ph. LK), with 8-10 there 24 Jul (AA, CC, LK). Also surprising were 4 in the salt fats at Las Coloradas 30 Jul (ph. RD). Another late migrant or summering species, 45 Common Terns were also at Las Coloradas 21 Jun, with 30 there the next day (ph. AM, JM). A Long-billed Curlew might also have spent the summer in the salt fats at Las Coloradas, where it was seen 30 Jul (ph. RD). A juv. Bat Falcon was at the cenote at Tesco, 15 km n. of Valladolid, Yuc. 21 Jun, where an ad. pair is known to reside (IA, BM, RM). PASSERINES A Black-faced Antthrush was seen and heard in confrmed for southern Quintana Roo. WATERFOWL THROUGH FALCONS A fock of 13 Blue-winged Teal was in the coast- al lagoon near the road to the former garbage dump behind Progreso, Yuc. 7 Jun (ph. AM, JM), and one was still at Pilares in the Celestún, Yuc. estuary 13 Jul (AD). Two Lesser Scaup were at the San Fernando pumping station at Las Coloradas, Yuc. 18 Jun (AD), with one still present 10 Jul (ph. WS). A new addition to the avifauna of the Yucatan Peninsula, an ad. Red- billed Tropicbird was seen briefy on Isla Pérez, Alacranes Reef, Yuc. 12 Jun (ph. AM, JM). A Least Bittern was photographed at Cancún, Q. Roo 29 Jun (CA, ph. JF). An ad. Black-crowned Night-Heron, a species known to nest in the subregion, was in the coastal lagoon just n. of the Xcambo ruins, Yuc. 7 Jun (AM. JM). Once more a Zone-tailed Hawk was registered in the month of Jun, this one near Río Lagartos, Yuc. 21 Jun (ph. AM, JM). In addition to 2 American Coots observed at Acuaparque in Mérida, Yuc. 5 Jun (AM, ph. JM), 4 were reported at Mayakobá, Q. Roo 24 Jul (JFB), and 2 more were at the Co- zumel Country Club, Q. Roo 30 Jul (MF). American Avocets remained late into sum- mer: several groups totaling 46 individuals, most in breeding plumage, were in the coastal lagoon behind Progreso 7 Jun (ph. AM, JM); a fock of 43 was at Las Coloradas 22 Jun (AM, JM); 60 were in the coastal lagoon between Pro- greso and Chicxulub, Yuc. 3 Jul (AG); and 300 were at Pilares in the Celestún estuary 13 Jul (AD). A Semipalmated Sandpiper was on Isla Pérez, Alacranes 15 Jun (ph. AM, JM). Short- billed Dowitchers also remained through Jun, as shown by 4 in coastal lagoon behind Pro- greso 7 Jun (ph. AM, JM) and several at Las in Nuevo Vallarta, Nay. 14 Jul (JAR). At least 20 Monk Parakeet nests were counted in Cerro de las Campanas, Qro. 30 Jun (ph. FV), and a fock of 12 was at Talismán and Norte 72B, D.F. 5 Jul (HGdS, MPV). Single Peregrine Fal- cons were at Romero de Terreros and División del Norte, D.F. 3 Jun and at Xola and Patricio Sánz, D.F. 27 Jun and 5 & 11 Jul (HGdS, MPV). Two Golden-crowned Kinglets were noted at Bosque de Santa Clara, Tlax. 25 Jul (HGdS, MPV). An early Lucy's Warbler was at Sta. Bar- bara, Reserva Monte Mojino, Son. 29 Jun (AM, JM), and 3 were at Alamos, Son. 2 Jul (ph. AM, JM). Two Tricolored Munias were seen at Santa Alejandrina marsh, Ver. 17 Jul (MG). Contributors (area compiler in boldface): Luis Enrique Andrade Blanc, Miguel Angel Ayala Mata, Martin Balog, Humberto Berlanga, Héct- or Ceballos Lascuráin, Nicola Cendrón, Héctor Gómez de Silva, Manuel Grosselet, Jonathan Hiley, Dolan Kornelsen, Adrián Lionel, José Hugo Martínez Guerrero, Amy McAndrews, Jorge Montejo, Mónica Pérez Villafaña, José Antonio Robles, Bernardo Rodríguez, Adrían Romo García, Bryan Sharp, Mark Stackhouse, René Valdes, Fabián Velázquez. Southern MeXICo & YuCatan PenInSula There were more reports than usual of water- birds staying later than normal and even over- summering, perhaps due to the excessive rain- fall making more food and habitat in general available. The Yucatan Peninsula list added Red- billed Tropicbird, and Black Catbird was verifed for the frst time at Alacranes Reef. Nesting Man- grove Warblers were documented for Cozumel Island, and nesting of Eastern Meadowlark was A frst record for the Yucatan Peninsula, this adult Red- billed Tropicbird was discovered 12 June 2014 on Isla Pérez in the Arrecife Alacranes Biosphere Reserve, Yucatán. Photograph by Amy McAndrews.

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