2004
Ramírez-Bautista, A. y V. Olvera-Becerril. 2004. Reproduction in the Boulder Spiny Lizard, Sceloporus pyrocephalus (Sauria: Phrynosomatidae), from a Tropical Dry Forest of México. ISSN: 0022-1511. Journal of Herpetology 38 (2): 225-231.
Avifauna de la Reserva de la Biosfera Barranca de Metztitlán, Hidalgo, México
UN PANORAMA BREVE DE LA HISTORIA DE LA ORNITOLOGÍA MEXICANA
Abundance of frugivorous birds and richness of fruit resource: is there a temporal relationship?
Temporal-spatial segregation among hummingbirds foraging on honeydew in a temperate forest in Mexico
A female Lucifer Hummingbird (Calothorax lucifer) with iridescent chin feathers
The effect of spatio-temporal variation in understanding the fruit crop size hypothesis