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Difference between revisions of "Iberian Magpie" - BirdForum Opus

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==Behaviour==
 
==Behaviour==
 
Gregarious, forming noisy groups out of the breeding season.
 
Gregarious, forming noisy groups out of the breeding season.
====Diet====
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====Diet====  
The diet includes acorns and pine nuts, invertebrates and larvae, soft fruits and berries. When seeking invertebrates on the ground, they like to jump forward both feet together.  
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Omnivorous, with a broad diet including beetles (Coleoptera) and other insects and their larvae, caterpillars, millipedes (Diplopoda), snails (Gastropoda), leeches (Hirudinea)a large selection of fruits and nuts, including grapes, olives, mulberries, myrtle, asparagus, cherries, daphne, acorns and pine seeds.
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It ocasionally takes nestlings and there have been recorded instances of catching and eating adult [[Barn Swallow]]s and a fledged juvenile [[House Sparrow]].<br />
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<br />
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Foraging parties vary from small to quite large groups, being led from tree to tree by a group leader. On reaching a suitable feeding site, some flock members search the tree canopy, [[Dictionary_G-L#G|gleaning]] insects and fruits, sometimes hanging upside down to achieve this.<br />
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<br />
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Other groups drop to the ground seeking invertebrates. They like to jump forward with both feet together as they turn over leaf litter and examine tree boles. Caches food in loose soil on banks. Generally shy and very wary, but can become confiding where undisturbed. General behaviour very much as for [[Azure-winged Magpie]].
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====Breeding====
 
====Breeding====
 
They nest in loose, open colonies with a single nest in each tree, usually a Holm Oak ''Quercus ilex''. Incubation takes around 15 days for the 6–8 eggs.<br />
 
They nest in loose, open colonies with a single nest in each tree, usually a Holm Oak ''Quercus ilex''. Incubation takes around 15 days for the 6–8 eggs.<br />

Revision as of 12:32, 21 November 2016

Alternative Name: Iberian Azure-winged Magpie, Cook’s Azure-winged Magpie, Spanish Azure-winged Magpie

Photography by john-henry
Southern Spain
Cyanopica cooki

Identification

Length 34-36 cm, 13.4-14.2 inches, tail length 19-19.7 cm, 7.5-7.8 inches. Weight 65-76 g, 2.3-2.7 oz

Adults

  • Head proportionally large
  • Glossy black cap from crown to below eye including ear-coverts and nape
  • Iridescent purple on crown and nape.
  • Nape feathers slightly ruffled
  • White throat and malar area
  • Upperparts brownish-grey with pinkish hue
  • Uppertail-coverts have blue wash
  • Light buffish underparts
  • Wings proportionally short and wide
  • Upper wing azure blue with remiges with black inner web, azure blue with white tip outer web of primaries increasingly to outer primary
  • Long, broad and strongly graduated azure blue tail with horn coloured shafts
  • Underparts pinkish-grey darkest on flanks and side of breast fading to near white on center of belly
  • Iris dark brown to black
  • Beak black, fairly short and pointed
  • Bristles short and thick
  • Legs black, fairly short and weak

Juveniles

  • Juvenileshave a brownish-black hood.

Similar species

  • Differs from Azure-winged Magpie being smaller, with shorter beak, brighter blue wings and tail, lacks white tips on tail. Sexes similar. Juvenile is similar to adult, but hood brownish-black, crown feathers with pale edges, wing-coverts with sandy edges, greater coverts tipped white forming a narrow bar, tail tip not as sharp and with narrow buff edges, adultlike by end of first autumn.

Distribution

Endemic to the Iberian Peninsula (Portugal and Spain).

Taxonomy

This is a monotypic species.
It was formerly considered conspecific with Azure-winged Magpie from Asia

Habitat

Open woodland with glades, orchards and olive groves. Prefers holm oak (Quercus rotundifolia) and cork oak (Quercus suber) with scattered stone pines (Pinus pinea). Eucalyptus stands are preferred for communal roost sites. Recorded locally up to 700 m in foothill gorges, occurs at lower elevations, with largest concentrations in wooded coastal dunes of cultivated stone pines in southwest Spain, where it successfully competes with the usually dominant Common Magpie.

Behaviour

Gregarious, forming noisy groups out of the breeding season.

Diet

Omnivorous, with a broad diet including beetles (Coleoptera) and other insects and their larvae, caterpillars, millipedes (Diplopoda), snails (Gastropoda), leeches (Hirudinea)a large selection of fruits and nuts, including grapes, olives, mulberries, myrtle, asparagus, cherries, daphne, acorns and pine seeds. It ocasionally takes nestlings and there have been recorded instances of catching and eating adult Barn Swallows and a fledged juvenile House Sparrow.

Foraging parties vary from small to quite large groups, being led from tree to tree by a group leader. On reaching a suitable feeding site, some flock members search the tree canopy, gleaning insects and fruits, sometimes hanging upside down to achieve this.

Other groups drop to the ground seeking invertebrates. They like to jump forward with both feet together as they turn over leaf litter and examine tree boles. Caches food in loose soil on banks. Generally shy and very wary, but can become confiding where undisturbed. General behaviour very much as for Azure-winged Magpie.


Breeding

They nest in loose, open colonies with a single nest in each tree, usually a Holm Oak Quercus ilex. Incubation takes around 15 days for the 6–8 eggs.
They can be used as host species by Great Spotted Cuckoo.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2013. The eBird/Clements checklist of birds of the world: Version 6.8., with updates to August 2013. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase
  3. Wikipedia
  4. Collins Field Guide 5th Edition
  5. Collins Bird Guide ISBN 0 00 219728 6

External Links


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