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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Juveniles have an all-black exterior to the bill ulrtamarina fledging, but roof of inner upper mandible can remain partially white for up to two years.

ultrwmarina Foraging in groups allows for a higher success rate; sharing can occur. Translate Avibase is also available in the following languages: There aphelocma an area of apparent hybridization in San Luis Potosi that deserves study. This terrestrial biome includes summits of high mountains, either without vegetation or covered by low, tundra-like vegetation. Mountains w Mexico nw Jalisco to ne Colima Aphelocoma wollweberi wollweberi: Connect with us Help us improve the site by taking our survey.

Mexican jay – Wikipedia

Populations to the north retained the common name Mexican jay, but the Latin name changed to A. In Arizona, eggs were pale green in color but a pale blue with brown speckling in Texas. Handbook of ultramaria Birds of the World Alive. Garrulus Eurasian jay G.

Often specializes on seeds of pine and oak; probably also consumes fruits, nectar It is assumed that the young hatch on the same day because there is not a large size difference apjelocoma young in a clutch. Transvolcanic Jay is similar to Mexican Jay Aphelocoma wollweberiand indeed until recently Transvolcanic Jay was classified as a subspecies group of Mexican.


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Philadelphia 4 pt2 p. Contribute to Avibase Acknowledgements Flickr group Media stats Flickr group members Media wanted Translate Avibase is also available in the following languages: Size variation among the groups does not always follow Bergmann’s rulewith more southerly populations in the Sierra Madre Oriental being larger than populations to the north.

Your sightings No sightings Add to a aphflocoma Generally similar to those of A. In eastern populations Texas birds are more typically territorial. Corvus ultramarinus Bonaparte, Temascaltepec, Mexico.

Food and feeding Poorly known relative to A.

Mexican jay

However, in larger clutches there are often runts, which shows that one or two of the eggs hatched later than the rest. Ghiandaia del Messico Japanese: All members of a breeding group participate in rearing offspring. 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.

Second and even third clutches have been observed although for the most part they were replacement clutches and were smaller than first clutches. In Maythe American Ornithologists’ Union voted to split the Mexican jay into two species, one retaining the common name Mexican jay and one called the Transvolcanic jay. Until recently considered conspecific with A.


Avibase is also available in the following languages: Glossary acoustic uses sound to communicate. Public comments No comments yet Only members are able to post public comments.

Transvolcanic jay – Wikipedia

ADW doesn’t cover all species in the world, nor does it include all the latest scientific information about organisms we describe. To cite this page: Transvolcanic or Mexican Jay Czech: This dependence wanes ultranarina they start gaining foraging skills of their own. In the winter, the Mexican jay’s diet consists mainly of acorns u,tramarina pine nutswhich are stored in the autumn. Jays have died by eating corn kernels from a garden laced with fungicides, by finding pesticides in storage areas, and through collisions with motor vehicles.

Bird checklists – taxonomy – distribution – maps – links. Geai des volcans German: The three groups inhabit three distinct mountainous ultramxrina in northern and central Mexico. Habitat Montane pine Pinus and pine-oak Quercus woodlands; oaks may be scarce in some The Transvolcanic jay inhabits montane forest in the Transvolcanic Belt of central Mexico.

It feeds largely on acorns and pine nutsbut aphelicoma many other plant and animal foods in its diet. Mexican jays do not seem to follow Gloger’s rule either, as populations in arid habitat in southwestern Texas are very blue.

Members of her group, but not other incubating females, feed the female on nest. Corvus ultramarinus Avibase ID: