Black-capped Chickadee
Black-capped Chickadee ( Poecile atricapillus)
The Black-capped Chickadee ( Poecile atricapillus ) is an American songbird. Since it is still controversial whether Poecile is a separate genus or subgenus of the genus Parus, Parus atricapillus also is specified as the scientific name of Black-capped Chickadee often.
Features
The 13 cm long Black-capped Chickadee is a relatively small songbird with a relatively large head. The plumage is black at apex, neck and base of throat, white on cheeks, colored gray and belly yellow-brown on the back. The short black wings and long tail are colored black with white edges.
The call is a pre- rendered in a deep voice and slow chick -a- dee -dee- dee, it came to designing the English name of the bird.
Occurrence
The Black-capped Chickadee lives in forests and in areas with mature trees in southern Canada and the northern United States.
Behavior
The Black-capped Chickadee studied in thickets for insects, seeds and berries, and also creates inventories for the cold season. In winter, the bird is a frequent visitor to bird feeders and even flying to the hand of man. Outside the breeding season form Schwarzkopf tits small, noisy squads. In general, these comprise from about ten flock of birds.
Reproduction
The Black-capped Chickadee is building in May or June, a cup nest of Pflanzendunen, feathers and hair in a tree hollow or in a nest box. The nest consists of about eight eggs. Well studied is the influence of social hierarchy on reproductive behavior. Schwarzkopf tits are familiar due to the small winter squads very well with other Schwarzkopf tits their immediate nesting area and form a social hierarchy. Usually, the highest-ranking females is partnering with the highest-ranking male. They sometimes stay together more than one breeding season. However, the females separate from their male when they can enter into a partnership with a higher-ranking males. This was also shown in a study in which the females of the seven highest-ranking males were removed. Over the next two days separated complex remaining females of their males for relations with the available, higher-ranking males to respond. After the higher-ranking females were reinstated, they chased the females. To complete the study, and finally six low-ranking females were removed which were mated with corresponding lower-level male. These males remained without a partner.
Where overlap the distribution areas, this species crosses the Carolina Chickadee and the Gambelmeise.