New distributional and temporal bird records from Chihuahua, Mexico

摘要

We present noteworthy records from Chihuahua, northern Mexico, including several first state occurrences (e.g. White Ibis Eudocimus albus, Red-shouldered Hawk Buteo lineatus) or species with very few previous state records (e.g. Tricoloured Heron Egretta tricolor, Baltimore Oriole Icterus galbulu). We also report the first Chihuahuan records of Red-tailed Hawk Buteo jamaicensis harlani and 'White-winged' Dark-eyed Junco Junco hyemaiis aikeni (the latter only the second Mexican record). Other recordsimprove our knowledge of the distribution of winter visitors to the Chihuahuan Desert ecoregion that formerly were considered transients, including several parulids. Our field work has also improved knowledge of the distribution of certain Near Threatened (e.g. Snowy Plover Charadrius nivosus) and Vulnerable species (e.g. Pinyon Jay Gymnorhinus cyanocephalus). We also confirmed various breeding localities for Yellow-crowned Night Heron Nyctanassa violacea in Chihuahua.