Critically Endangered
Alagoas Tyrannulet
Phylloscartes ceciliae
Alagoas Tyrannulet is a perching bird in the family Tyrannidae (order Passeriformes) — Phylloscartes ceciliae, recorded as Critically Endangered.
Appearance
The sexes have the same plumage. Their crown, nape, back, and rump are dark olive green. Their wings are blackish olive with thin yellowish green edges to the flight feathers.
The Alagoas tyrannulet is 11 to 13 cm (4.3 to 5.1 in) long. Five individuals weighed 6.8 to 8.4 g (0.24 to 0.30 oz).
Published measurements include mass about 7.5.
Range and habitat
The Alagoas tyrannulet is found only in far northeastern Brazil, in eastern Pernambuco and northeastern Alagoas states. Its total range is estimated at 11,800 km2 (4,600 sq mi), within that it is known from about 20 locations. It is a bird of the Atlantic Forest, where it inhabits remnants of primary evergreen forest and mature secondary forest.
It is considered "locally fairly common" overall and "locally relatively common" in some private preserves.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Diet and breeding
It forages actively, usually from the forest's mid-story to its canopy between about 6 and 15 m (20 and 50 ft) above the ground. It perches horizontally, sometimes with its tail cocked up, and makes short sallies to grab or hover-glean prey from leaves and twigs.
It typically forages in pairs and sometimes joins mixed-species feeding flocks. The Alagoas tyrannulet's breeding season has not been detailed but appears to be between September and February. It makes a globular nest of plant fibers and dead leaves with a side entrance.
In crisis
The IUCN originally in 1988 assessed the Alagoas tyrannulet as Threatened, then in 1994 as Endangered, in 2000 as Critically Endangered, in 2004 again as Endangered, and since 2017 again as Critically Endangered. It has a restricted range and its estimated population of 50 to 250 mature individuals is believed to be decreasing.
Alagoas Tyrannulet is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Alagoas Tyrannulet, Wikidata item Q575647. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
