MMaxi08 Tolar

Amsterdam, Human | 06 juin 2008

Publié par Tolar à 22:35:06 dans Amsterdam | Commentaires (0) | Permaliens

Animal, Alberta,nuthatch,white-breasted | 02 juin 2008

A common bird of deciduous forests and wooded suburbs, the White-breasted Nuthatch can be seen hopping headfirst down the trunks of trees in search of insect food.
It frequents bird feeders and takes sunflower seeds off to the side of a tree, where it wedges them into a crevice and hammers them open.

Description

Large nuthatch; creeps headfirst down tree trunks.
Dark gray or black cap.
Bright white face and underparts.
Blue-gray upper parts.
Long bill either straight or slightly upturned.
Size: 13-14 cm (5-6 in)
Wingspan: 20-27 cm (8-11 in)
Weight: 18-30 g (0.64-1.06 ounces)

Sex Differences


Sexes similar; male with black cap, female with grayer cap.

Sound

Song a series of soft, slightly nasal "what, what, what" notes. Call a soft "yank.

Conservation Status


Common and widespread. Populations increasing over most of range.

Other Names

Sittelle à poitrine blanch (French)
Saltapalo blanco (Spanish)

Cool Facts

Nuthatches gather nuts and seeds, jam them into tree bark, and hammer or "hatch" the food open with their bills.

The White-breasted Nuthatch is normally territorial throughout the year, with pairs staying together.
The male is more vigilant when he forages alone than when he is with the female.
The female, however, is in danger of having the more dominant male displace her from foraging sites, and she is more vigilant when he is around than when she is alone.


In winter, the White-breasted Nuthatch joins foraging flocks led by chickadees or titmice.
One explanation for these flocks is that the birds gain protection from predators by the vigilance of the other birds.
In support of this idea, one study found that if titmice were removed from a flock, nuthatches were more wary and reluctant to come to exposed bird feeders.


MMaxi08

Publié par Tolar à 13:07:29 dans Animal | Commentaires (0) | Permaliens

Alberta,blue,jay | 31 mai 2008

The Jay is a colourful crow that is about the same size as a Jackdaw.

They are mostly a pinkish brown, the underparts being slightly paler. The head has a black and white flecked crown, black moustache and white throat. The white rump contrasts starkly with the black tail. The iris of the eye is a pale blue, the bill is black and the legs are pink-brown. The wings are mostly black with white patches but also have striking blue patches, but close to these wing patches are actually bands of graduated shades of blue:



The Jay can raise its crown feathers to a crest when excited or displaying. Perhaps for this reason, novice birdwatchers sometimes confuse Jays with Hoopoes.

MMaxi08

Publié par Tolar à 12:48:41 dans Animal | Commentaires (2) | Permaliens

Machine Metal Human Water Amsterdam | 23 mai 2008

Publié par Tolar à 23:33:59 dans Machine | Commentaires (0) | Permaliens

Animal Amsterdam Water | 23 mai 2008

Publié par Tolar à 23:32:33 dans Animal | Commentaires (0) | Permaliens

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