Artigo Acesso aberto

Recent Data On Summer Birds Of The Chiricahua Mountains Area Southeastern Arizona Usa Aquila-Chrysaetos Falco-Mexicanus Cyrtonyx-Montezumae Sialia-Sialis Cypseloides-Niger Calothorax-Lucifer

1968; Volume: 15; Linguagem: Inglês

10.5962/bhl.part.12053

ISSN

0080-5947

Autores

D J Ligon, R P Balda,

Tópico(s)

Rangeland and Wildlife Management

Resumo

Over four breeding seasons 167 species of birds were recorded from the Chiricahua Mountains and adjacent areas; 19 of these were winter residents or migrants not seen after May.The status of several species apparently has changed since the study of Tanner and Hardy (1958).The Golden Eagle (Aquila chrysaetos) and Prairie Falcon (Falco mexicanus) appear to have decreased, whereas the Harlequin Quail (Cyrtonyx montezumae) and several of the hummingbirds apparently are more common than previously.Several cavity-nesting species appear to have increased in numbers and tin Eastern Bluebird (Sialia sialis) has become established as a breeding species since 1960.Black Swifts (Cypseloides niger), a species for which there is no specimen for Arizona, were seen on one occasion, and a female Lucifer Hummingbird {Calo thorax lucifer) , another unexpected species, was seen on several occasions.Resumen.Se observaron 167 espccies de aves en las Montanas Chiricahua y zonas adyacentes, durante las cuatro estaciones de cria; 19 de estas especies eran residentes invernales o aves migratorias que no aparecian despues de Mayo.El estado de varias especies ha cambiado aparentemente desde los estudios realizados por Tanner y Hardy (1958).El Aguila Real (Acjuila chrysaetos) y el Halcon Cafc ; (Falco mexicanus) han disminuido, mientras que la Codorniz dedilarga (Cyrtonyx montezuma) y varios colibris son probablemente mas abundantes ahora que antes.Varias especies de las que anidan en cavidades han incrementando en numero, asi, el Azul de tempestad (Sialia siulis) aparece bien establecido, de modo que cria en esta zona desde 1960.EI Vencejo negro (Cypseloides niger) no se ha registrado en Arizona, y solamente se ha visto en una ocasion en esta region, asi como una hembra del Colibri Chupamirto morada grande (Calothorax lucifer) otra de las especies raras en esta zona, en donde solo ha sido observado en pocas ocasiones.The Chiricahua Mountains of Cochise County, Arizona, are located near the Arizona-New Mexico boundary about 20 miles north of the Mexican border.These mountains, along with the Huachuca and Santa Rita mountains, are of special ornithological interest because the northernmost extension of several essentially Mexican species and the southern limit of several boreal forms occur here.This, together with the wide variety of habitats found in the Chiricahuas, ranging from desert scrub to spruce-fir forest, combine to make this region rich in breeding bird species.In recent years the Chiricahuas have become relatively well known to ornithologists, largely because the Southwestern Research Station of the American Museum of Natural History is located in Cue Creek Canyon.The avifauna of the Chiricahua Mountains has been popularized by a number of ornithologists (Peterson, 1948; Brandt, 1951), but little detailed work has been published.Tanner and Hardy (1958) briefly describe the clevational distribution of some of the more common birds and review the avifaunal studies of the region, pointing out the sparseness of data dealing with breeding birds of the area.No comprehensive study of plant distribution in the Chiricahuas has been published, but Balda (1967) describes in detail the habitats he studied, and W'hittaker and Niering (1965) present an excellent discussion of plant distribution in the nearby and similar Santa Catalina mountains.We spent a great deal of time in riparian communities, habitats not described by Tanner and Hardy (1958).These are affected by lower temperatures (due to nightly cold air drainage) and higher moisture conditions than the adjacent typical plant communities of a given elevation.Riparian habitat is best developed in canyon bottoms but

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