| Table of contents Huitzil vol.13 n.1 Omitlán Jan./Jun. 2012 New records and range extensions | | | | · Reproductive records of the Eurasian Collared-Dove (Streptopelia decaocto) in Yucatan, Mexico Chablé-Santos, Juan; Gómez-Uc, Ernesto; Hernández-Betancourt, Silvia
| | | Scientific | | | | · Influence of the outer rectrices asymmetry in flight efficiency of the Magnificent Frigatebird (Fregata magnificens) González-Jaramillo, Mónica; Cueva, Horacio de la
| | | New records and range extensions | | | | · Note on the distribution and migration of the Black-capped Vireo (Vireo atricapilla) MacGregor-Fors, Ian; Navarro-Sigüenza, Adolfo G.; Morales-Pérez, Lorena; Schondube, Jorge E.
| | | Results of surveys | | | | · Bird richness of the Natural Protected Area Estero El Salado, Puerto Vallarta, Jalisco, Mexico Molina, David; Torres-Guerrero, Jaime; Avelarde-Gómez, María de la Luz
| | | New records and range extensions | | | | · Confirmation of the presence of the Snail Kite (Rostrhamus sociabilis) in Jalisco, Mexico Pineda-López, Rubén; Febvre Morales, Nadia; Martínez, Mahinda
| | | | · New record of the White-fronted Amazon (Amazona albifrons) on Cozumel Island, Quintana Roo, Mexico Plasencia-Vázquez, Alexis Herminio; Escalona-Segura, Griselda
| | | Scientific | | | | · Factors affecting the average weight of the Common Ground-Dove (Columbina passerina) at the Dzilam Reserve, Yucatán, Mexico Leirana Alcocer, Jorge L.; Hernández Betancourt, Silvia; Guerrero González, Leonardo
| | | New records and range extensions | | | | · First records of Black Tern Childonias niger, Willet Tringa semipalmata, and Snowy Plover Charadrius nivosus for the state of Queretaro, central Mexico Hiley, Jonathan
| | | | · First record of the Common Merganser (Mergus merganser) in Durango, Mexico Martínez Guerrero, José Hugo; Pereda Solís, Martín Emilio; Nocedal Moreno, Jorge
| | | | · Additional sites in the geographical distribution of the Crested Guan (Penelope purpurascens) in Puebla and Oaxaca, Mexico González-García, Fernando; Pérez-Solano, Luz A.; Eric Ramírez-Bravo, O; Mandujano, Salvador; Ramírez-Julián, Ricarda; Reyes Macedo, Gladys; Salazar-Torres, Juan M.; Guillén-Servent, Antonio
| | | | · First record of the Sparkling-tailed Hummingbird (Tilmatura dupontii, Trochilidae) in the Sierra Juarez, Oaxaca, Mexico and some notes about its feeding habits Díaz-Valenzuela, Román; González-García, Fernando; Núñez, Rosa María
| | | Scientific | | | | · Differential transport of pollen by hummingbirds in a distylous plant: is not the same short than long bills Morales Guzmán, Israel; Lara, Carlos; Castillo-Guevara, Citlalli
| | | New records and range extensions | | | | · A record of the Kentucky Warbler (Geothlypis formosa) in Hidalgo, Mexico: confirmation of its presence in the state and range extension Carbó-Ramírez, Pilar; Zuria, Iriana
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