| Table of contents Huitzil vol.22 n.2 Omitlán Jul./Dec. 2021 Original articles | | | | · Winter diet composition of the Northern Pintail (Anas acuta) in Ciénagas del Lerma, Mexico State Quijano Hernández, Sandra; Bravo Vinaja, María Guadalupe; Colón Quezada, David; Alcántara Carbajal, José Luis; Rosas Rosas, Octavio César; Ramírez Martínez, Laura Jocelyn
| | | | · Analysis of pellets of the Striped Owl, Asio clamator, (Aves: Strigiformes) in Atahualpa, Santa Elena province, Ecuador Vargas, Rocío; Abella, Juan; Gregori, María; Brito, Jorge
| | | | · Composition and structure of the bird community in an urban riparian corridor of the metropolitan area of Monterrey, Nuevo Leon, Mexico Castillo-Muñoz, Marilyn; Guzmán-Hernández, Jorge Leonardo
| | | Scientific notes | | | | · Presence of the Virginia Rail (Rallus limicola) at the Ramsar Site Río San Pedro-Meoqui, Chihuahua, Mexico Loredo Varela, Juan Luis; Escudero Hernández, Leonardo
| | | | · Identification of Eimeria columbarum in the Rock Pigeon (Columba livia) from Toluca City, Mexico Salgado-Miranda, Celene; Soriano-Vargas, Edgardo
| | | | · Partial leucism in the Variable Seedeater (Sporophila corvina corvina) in Costa Rica. Villegas, Sergio
| | | | · First record of the Rufous-tailed Hummingbird (Amazilia tzacatl) in the State of Guanajuato, Mexico Zamorano-Sámano, María Teresa; García-Rubio, Oscar Ricardo
| | | | · New records of the Tufted Flycatcher (Mitrephanes phaeocercus) in the central coast of Veracruz, Mexico Ciprés-Chávez, Adrián; Córdoba-Cuevas, Enya Astrid; Toto-Cobix, Jordi
| | | | · Notes on nests of the Pink-headed Warbler (Cardellina versicolor), with observations on parental behavior Quiñónez-Guzmán, Juan M.; B. Bosarreyes, Bianca; Orozco Díaz, Edgardo
| | | | · Predation of a Red-headed Spiny Lizard (Sceloporus pyrocephalus) by a Golden-cheeked Woodpecker (Melanerpes chrysogenys) in the southwestern of State of México, Mexico Bautista-Trejo, Rogelio; Ramírez-Albores, Jorge E.
| | |
|