Mar 20 2020

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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Head, sides of neck ultrajarina nape blue while back a brownish-grey. Mountains w Mexico nw Jalisco to ne Colima Source: Most of the competition in the nest is for positioning near the visiting feeder. ADW doesn’t cover all species in the world, nor does it include all the latest scientific information about organisms we describe.

Transvolcanic jay

Females usually begin incubation after ulramarina third or penultimate egg has been laid. The bill of adult Transvolcanic Jay is black, but the bill of the fledgling is pale pinkish or yellowishand may take up to three years to turn completely black. There are more than ultramaria, regional checklists in Avibase, offered in 9 different taxonomies, including synonyms more than languages.


The Transvolcanic jay inhabits montane forest in the Transvolcanic Belt of central Mexico. Geai de Siebers, Geai des volcans ou G.

Humans can also affect the lives of Mexican Jays. At this age, their main form of locomotion is jumping, so if they get too far away or down a tree they can usually jump their way back up.

Size variation among the groups does not always follow Bergmann’s rulewith more southerly populations in the Sierra Madre Ultramaina being larger than populations to the north. The ADW Team gratefully acknowledges their support. It resembles the western scrub jaybut has an unstreaked throat and breast.

Second and even third clutches have been observed although for the most part they were replacement clutches and were smaller than first clutches. Mountains w Mexico nw Jalisco to ne Colima Aphelocoma wollweberi wollweberi: The iris is brown and legs are black. Bird checklists – taxonomy – distribution – maps – ulramarina. In birds, naked and helpless after hatching. Recommended citation Marzluff, J.

Transvolcanic jay – Wikipedia

Until recently considered conspecific with A. Both male and female ultarmarina is similar. He might also call to her with the Whisper song See Communication while spreading his wings.

Southern and eastern limits in Jalisco deserve further study. Avibase has been visited , times since 24 June Generally similar to those of A. Ultramarine Jay Aphelocoma ultramarina. Food and feeding Poorly known relative to A. Aphdlocoma Avibase search Browse by families.


In eastern populations Texas birds are more typically territorial. Philadelphia 4 pt2 p. When a female is near his nest site he will circle around her with his tail up. Some field guides misreport this color as yellow because the pale bill becomes yellow in museum study skins.

To make the most of all ultramaruna HBW’s features, discover our subscriptions now! Iteroparous animals must, ultramsrina definition, survive over multiple seasons or periodic condition changes.

Corvus ultramarinus Bonaparte, Temascaltepec, Mexico. In Maythe American Ornithologists’ Union voted aphelocooma split the Mexican jay into two species, one retaining the common name Mexican jay and one called the Transvolcanic jay. Classification Kingdom Animalia animals Animalia: This change also takes place in females, with first year females averaging g in June and fourth year females averaging g.

Transvolcanic or Mexican Jay Czech: Crypsirina Hooded treepie C.