THE WORLD BIRDS - An Online Bird Book
CORVIDAE
The Corvidae family contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies, choughs and nutcrackers. These species are grouped into subfamilies that are outlined in the table that follows. Beware that names such as jays, magpies, or treepies are not always assigned in a consistant manner. For example, the black magpie (Platysmurus leucopterus) belongs to the treepie subfamily.
SUBFAMILY |
MEMBERS |
Corvinae |
True crows of genus Corvus includes the crows, ravens, rooks, jackdaws.
|
Corvinae (continued) |
Jays of genus Garrulus, nutcrackers of Nucifraga, magpies of Pica, ground-jays of Jay Podoces, and the piapiac of Ptilostomus, and Stresemann's bush-crow of Zavattariornis. |
Cissinae |
Green-magpies of Cissa and the blue-magpies of Urocissa. |
Cyanocoracinae |
Most of the species that are named "jay". |
Crypsirininae |
Treepies |
Perisoreinae |
Three jay species of Perisoreus and Magpies of Cyanopica |
Corvids are medium to large in size, with strong feet and bills, and a single moult each year (most passerines moult twice). Most species have bristle-like feathers covering their nostrils. They are omnivores having a varied diet of animal and plant material. Makes average slightly heavier than females. Corvids are found worldwide except for the tip of South America and the polar ice caps.
Subfamily Cissinae
- Magpies
This covid subfamily contains two magpie genera: the green-magpies of
Cissa and the blue-magpies of
Urocissa. These are Asian magpies with the greens being centered around Southeast Asia and the blues averaging more northern in location. Both magpie groups eat more vertebrates and invertebrates than plant material.
Other magpie not in this subfamily are in genus
Cyanopica and genus
Pica.
Image by Benson lin
Genus Cissa
The green plumage of these 4 species comes from the pigment lutein, which will fade to blue if the bird has an insufficient diet, and also if it is in too bright sunlight for long. They all have mainly green plumage, a greenish-yellow crown, and a black mask that wraps around the back of its head. They also have red bills, legs, and eye-rings. The green-magpies are found in Southeast Asis, Indonesia, and Malaysia. The Indochinese green-magpie is also found in southeast China.
Magpie,_Bornean_Green- also
Short-tailed Magpie Cissa jefferyi
Image by:
1, 2) Hiyashi_H.also known as 3)
Mike Price
Magpie,_Common_Green- Cissa chinensis
Image by: 1)
David Jarvis - Thailand zoo
2) Jason_Thompson - Thailand 3)
Budak
Magpie,_Indochinese Green- Cissa hypoleuca
Image by:
1)
Quarti
Magpie,_Javan Green- Cissa thalassina
Image by:
1)
PaleoMatt 2)
Vaclav_Silha
Genus Urocissa
The majority of these 5 blue-magpies species have mainly blue upperparts, a black hood, and a very long graduated tail. For the Sri Lanka blue-magpie the black is replace by chestnut. The white-winged magpie is an exception, it has mainly black and white plumage; perhaps it should not be in this genus. The blue-magpies are found in the Indian subcontinent, southern China, Taiwan, Vietnam and nearby countries.
Magpie,_Red-billed Blue- Urocissa erythrorhyncha