Eurasian Siskin
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Spinus spinus
Locally fairly common residents of 357,000 pairs in Britain & Winter visitors.
Males have a greyish-green back, a yellow rump, yellow sides to the tail with a black tip, black wings with a distinctive yellow wing stripe, a black bib (or chin patch) and two yellow auriculas and a black cap on its head.
Female is more olive-coloured than that of the male.
Its cap and auriculas are greenish with a white bib and a slightly striped, whitish-yellow rump.
Juveniles have a similar colouration to the Females, with drab colours and a more subdued plumage.
The song is a smooth, rapid twitter and trill of long duration, occasionally interrupted by stronger or shorter syllables.
The call is a represented as "tilu" and "tluih".