muistisiruja

Muistisiruja, also known as the common blue tit (Cyanistes caeruleus), is a small passerine bird species native to Europe and Asia. It is one of the most widespread and common species of tit in Europe, with a range that extends from the Iberian Peninsula and Britain in the west to Siberia in the east. The species is well-known for its distinctive blue and yellow plumage, with males having a bright blue cap and breast, and females having a more subdued blue coloration.

The common blue tit is a resident breeder in most of its range, with populations that are stable or increasing in many areas. It is a cavity-nesting species, typically breeding in tree holes or nest boxes. The female lays a clutch of 7-12 eggs, which are incubated by both parents. The young are fed by both parents and fledge after about 18-20 days.

The diet of the common blue tit consists mainly of insects, particularly beetles and their larvae, but it also feeds on seeds, berries, and other plant material. It is an active and agile bird, often seen foraging in trees and on the ground. The species is also known for its vocalizations, with a distinctive "tsit" call that is often heard in winter.

The common blue tit is not currently considered to be threatened, but it is subject to various threats, including habitat loss and degradation, and the use of pesticides. Conservation efforts are focused on protecting and enhancing suitable habitat, and on reducing the impact of pesticides on bird populations.