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The Transvolcanic jay (Aphelocoma ultramarina) is a medium-large (~ g) passerine bird similar in size to most other jays, with a blue head, blue-gray mantle. Scientific Name: Aphelocoma ultramarina (Bonaparte, ). Common Name(s). English, –, Ultramarine Jay, Transvolcanic Jay. Click here for more information about the Red List categories and criteria. Justification of Red List category. This species has a very large range, and hence does.

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Iteroparous animals must, by definition, survive over multiple seasons or periodic condition changes.

Avibase checklists Search Avibase search Browse by families Contribute There are a few ways by which you can help the development of this page, such as joining the Flickr group for photos or providing translations of the site in addition languages. Avibase is also available in the following languages: Head, sides of neck and nape blue while back a brownish-grey. Its preferred habitat is montane pine – oak forest.

Synapomorphy of the Bilateria. Young start out on average at 6 g at hatching and can reach g in 18 to 20 days.

Now while the female is at the nest this first male will be the primary guarding male. When a female is near his nest site he will circle around her with his tail up.


Mexican jay – Wikipedia

By using this site, you agree to the Terms of Use and Privacy Policy. Second and even third clutches have been observed although for the most part they were replacement clutches and sphelocoma smaller than first clutches. Food and feeding Poorly known relative to A. Skip to main content. The three groups inhabit three distinct mountainous regions in northern and central Mexico.

Mexican jay

Aphelocoma wollweberi Kaup Year-round Migration Breeding Non-Breeding. In birds, naked and helpless after hatching. Pica Black-billed magpie P. Juveniles have an all-black exterior to the bill ultrxmarina fledging, but roof of inner upper mandible can remain partially white for up to two years. Show Details Hide Details.

Females usually begin incubation after the third or penultimate egg has been laid. Your sightings Ultramarinx sightings Add to a lifelist: Transvolcanic Jays occupy pine-oak forests and have large social groups, suggesting that it may be a cooperative breeder; but, in contrast to the northern populations of Mexican Jay in Arizona, which have been studied extensively, little is known about the biology of Transvolcanic Jay.

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Transvolcanic jay

Cissa Common green magpie C. Generally similar to those of A. Retrieved from ” https: The ADW Team gratefully acknowledges their support. Philadelphia 4 pt2 p. Foraging in groups allows for a higher success rate; sharing can occur.

In lower elevations they can be found in oak-lined creeks and sometimes even into grassland areas. Aphelocoma Scrub jays California scrub jay A.


Once she accepts, the male mounts the female for a brief copulation, one to five seconds. He might also call to her with the Whisper song See Communication while spreading his wings.

Aphelocomaa, they are omnivorous in all seasons and their diet includes a wide variety of plant and animal matter, including invertebrates, small amphibians and reptiles, and birds’ eggs and nestlings McCormack and Brown Contribute There are a few ways by ultramxrina you can help the development of this page, such as joining the Flickr group for photos or providing translations of the site in addition languages.

Its range somewhat overlaps with the western ultramarlna, but, where they co-occur, the two species seem to show ecological and morphological character displacement Curry et al.

Avibase is also available in the following languages: While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

Southern and eastern limits in Jalisco deserve further study.

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