The Greenish Warbler (Phylloscopus trochiloides), around the Himalayas

In central Siberia, two distinct forms of greenish warbler coexist without interbreeding, and therefore these forms can be considered distinct species.

The song differs from that of the Iberian Chiffchaff, which has a shorter djup djup djup wheep wheep chittichittichiittichitta.

The song differs from that of the Iberian chiffchaff, which has a shorter djup djup djup wheep wheep chittichittichiittichitta.

In Great Britain and the Netherlands, all accepted records of vagrant Iberian chiffchaffs relate to singing males.

It was initially named P. brehmii, but the type specimen of that taxon is not an Iberian Chiffchaff.

It was initially believed to be named P. brehmii, but the type specimen of that taxon is not an individual of the Iberian Chiffchaff[citation needed].

Insectivorous, the Common Chiffchaff winters mainly around the Mediterranean Sea.

There is a slow population increase of common chiffchaff in the Czech Republic.

There is a slow population increase of Common Chiffchaff in the Czech Republic.

The male common chiffchaff returns to its breeding territory two or three weeks before the female and immediately starts singing to establish ownership and attract a female.

The male Common Chiffchaff returns to its breeding territory two or three weeks before the female and immediately starts singing to establish ownership and attract a female.

Its call is a hweet, less disyllabic than the hooeet of the Willow Warbler or hu-it of the Western Bonelli's Warbler.

Its call is a hweet, less disyllabic than the hooeet of the willow warbler or hu-it of the western Bonelli's warbler.

Its call is a hweet, less disyllabic than the hooeet of the willow warbler or hu-it of the western Bonelli's warbler.

Its call is a hweet, less disyllabic than the hooeet of the willow warbler or hu-it of the western Bonelli's warbler.[31]

The Willow Warbler is very musical, which is behind the site is also very audible.

Bonelli's warbler (P. bonelli) might be confused with the common chiffchaff subspecies tristis, but it has a plain face and green in the wings.

Bonelli's Warbler (P. bonelli) might be confused with the Common Chiffchaff subspecies tristis, but it has a plain face and green in the wings.

Bonelli's Warbler (P. bonelli) might be confused with the Common Chiffchaff subspecies tristis, but it has a plain face and green in the wings.

Bonelli's warbler (P. bonelli) might be confused with the common chiffchaff subspecies tristis, but it has a plain face and green in the wings.