Black-headed penduline tit

The black-headed penduline tit (Remiz macronyx) is a species of bird in the family Remizidae. It is found in Central Asia in reed beds along lakes or rivers. Its distribution is fragmented. It is the least thoroughly-documented bird in the Remiz genus, and has been described as one of the most poorly-known bird in Central Asia.

Diet
It is omnivorous.

Taxonomy
Four subspecies are recognised:
 * R. m. macronyx (Severtsov, 1873) – southwest Kazakhstan, Uzbekistan, north & southeast Turkmenistan, Tajikistan, and northeast Afghanistan.
 * R. m. neglectus (Zarudny, 1908) – north Iran and south Turkmenistan. Its males typically have heads more fully covered in black plumage, with fewer traces of the chestnut seen in other subspecies.
 * R. m. nigricans (Zarudny, 1908) – southeast Iran and southwest Afghanistan. It is generally believed to have gone extinct. It had a dark head and a chestnut body.
 * R. m. ssaposhnikowi (Johansen, HE, 1907) – southeast Kazakhstan

The IUCN considers R. macronyx to be a synonym of Remiz pendulinus, the Eurasian penduline tit.