Category: Corvidae

Fish Crow (Corvus ossifragus)

[order] PASSERIFORMES | [family] Corvidae | [latin] Corvus ossifragus | [UK] Fish Crow | [FR] Corneille de rivage | [DE] Fischkrahe | [ES] Cuervo pescador | [NL] Viskraai Subspecies Monotypic species Physical charateristics Listen for this smallish crow near tidewater. Identify it by voice, not size; measurements of the American and Fish crows broadly overlap. […]

Green Jay (Cyanocorax luxuosus)

[order] PASSERIFORMES | [family] Corvidae | [latin] Cyanocorax luxuosus | [UK] Green Jay | [FR] Geai vert | [DE] Grunhaher | [ES] Picahayote | [NL] Inkagaai Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Cyanocorax luxuosus MA s Texas to Honduras Cyanocorax luxuosus centralis Cyanocorax luxuosus confusus Cyanocorax luxuosus cozumelae Cyanocorax […]

Grey Jay (Perisoreus canadensis)

[order] PASSERIFORMES | [family] Corvidae | [latin] Perisoreus canadensis | [UK] Grey Jay | [FR] Mesangeai gris | [DE] Meisenhaher | [ES] Arrendajo Canadiense | [NL] Canadese Taiga-gaai Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Cyanolyca canadensis Perisoreus canadensis NA n Perisoreus canadensis albescens Perisoreus canadensis bicolor Perisoreus canadensis canadensis […]

Hooded Crow (Corvus corone cornix)

[order] PASSERIFORMES | [family] Corvidae | [latin] Corvus corone cornix | [UK] Hooded Crow | [FR] Corneille mantelee | [DE] Nebelkrahe | [ES] Corneja Cenicienta | [NL] Bonte Kraai Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Corvus cornix EU c, s Corvus cornix capellanus Corvus cornix cornix Corvus cornix pallescens […]

Siberian Jay (Perisoreus infaustus)

[order] PASSERIFORMES | [family] Corvidae | [latin] Perisoreus infaustus | [UK] Siberian Jay | [FR] Mesangeai imitateur | [DE] Ungluckshaher | [ES] | [NL] Taiga-gaai Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Perisoreus infaustus EU n Perisoreus infaustus infaustus Perisoreus infaustus maritimus Perisoreus infaustus opicus Perisoreus infaustus ostjakorum Perisoreus infaustus […]

Azure Winged Magpie (Cyanopica cyanus)

Passeriformes Corvidae Azure-Winged Magpie (Cyanopica cyanus) [order] Passeriformes | [family] Corvidae | [latin] Cyanopica cyanus | [UK] Azure-Winged Magpie | [FR] Pie-bleue | [DE] Blauelster | [ES] Rabilargo | [IT] Gazza azzurra | [NL] Blauwe Ekster Physical charateristics About 75% size of Magpie. Small, elegant corvid with rather attenuated form ending in long tail shaped […]

Alpine Chough (Pyrrhocorax graculus)

Passeriformes Corvidae Alpine Chough (Pyrrhocorax graculus) [order] Passeriformes | [family] Corvidae | [latin] Pyrrhocorax graculus | [UK] Alpine Chough | [FR] Chocard à bec jaune | [DE] Alpendohle | [ES] Chova piqigualda | [IT] Gracchio | [NL] Alpenkauw Physical charateristics Medium-sized, rather small-headed, graceful crow. Black, with relatively small, short, decurved yellow bill and red […]

Age and sex determination of monomorphic non-breeding choughs: a long-term study

Chough (Pyrrhocorax pyrrhocorax) Science Article 1 abstract We present criteria for sexing and aging non-breeding Choughs( Pyrrhocorax py rrhocorax) based on nine years of capture-recapture data. Shape of the rectrices, intensity of plumage colour and iridescent brightness , and the contrast between old flight feathers and freshly molted ones allowed us to distinguish three age […]

Age and sex determination of monomorphic non-breeding choughs: a long-term study

Chough (Pyrrhocorax pyrrhocorax) Science Article 1 abstract We present criteria for sexing and aging non-breeding Choughs( Pyrrhocorax py rrhocorax) based on nine years of capture-recapture data. Shape of the rectrices, intensity of plumage colour and iridescent brightness , and the contrast between old flight feathers and freshly molted ones allowed us to distinguish three age […]