Tyrant-flycatchers (Tyrannidae)
Slender-footed Tyrannulet (Zimmerius gracilipes) - HBW 9, p. 297
French: Tyranneau à petits pieds
German: Schlankfuß-Kleintyrann
Spanish: Mosquerito Patifino
Taxonomy: Tyranniscus gracilipes P. L. Sclater and Salvin, 1868, Pebas, Peru.
Despite superficial resemblance to Phyllomyias, genus appears to be more closely related to Phylloscartes. This species was formerly placed in a separate genus, Tyranniscus, but exhibits plumage and morphological features (wing pattern, proportionally long tail and bill, and derived characters of both syrinx and palate) typical of present genus. Differences among named populations extremely subtle, apparently clinal, and recognizable only as population averages; on the other hand, apparent vocal differences across range imply that more than one taxon may be involved; furt.. View all taxonomy...
Despite superficial resemblance to Phyllomyias, genus appears to be more closely related to Phylloscartes. This species was formerly placed in a separate genus, Tyranniscus, but exhibits plumage and morphological features (wing pattern, proportionally long tail and bill, and derived characters of both syrinx and palate) typical of present genus. Differences among named populations extremely subtle, apparently clinal, and recognizable only as population averages; on the other hand, apparent vocal differences across range imply that more than one taxon may be involved; further study required. Three subspecies recognized.
Subspecies and Distribution:
- gracilipes (P. L. Sclater & Salvin, 1868) - SE Venezuela (S Bolívar, Amazonas), extreme E Colombia (Vichada S to Amazonas), NW Brazil (Amazonas), E Ecuador and NE Peru (Loreto).
- acer (Salvin & Godman, 1883) - the Guianas and NE Brazil (E Amazonas E to Maranhão, Ceará and Alagoas).
- gilvus (J. T. Zimmer, 1941) - W & S Amazonian Brazil (Amazonas S to Rondônia and N Mato Grosso), C & SE Peru and N Bolivia (S to Cochabamba and N Santa Cruz).
- Least Concern Enlarge map
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Bird building the nest on a dead Cecropia leaf and preening on a branch. Locality Serra de Baturité, Ceará State, Brazil (ssp acer)
Ciro Albano 11 January 2010 2 years ago 53 sec 4 -
A bird in a tree, showing comfort behaviour and regurgitating a pellet. Locality Serra de Baturité, Ceará State, Brazil (ssp acer)
Josep del Hoyo 2 October 2008 3 years ago 32 sec 4 -
A bird moving in a tree, close to another bird. Locality Cuieiras Biological Reserve, Manaus, Amazonas State, Brazil
Josep del Hoyo 30 July 2011 3 weeks ago ADDED LAST MONTH 14 sec 3.5 -
A bird in a tree preening. Locality Serra de Baturité, Ceará State, Brazil (ssp acer)
Josep del Hoyo 2 October 2008 3 years ago 32 sec 3.3 -
the same individual perched on a bare branch at the forest edge of La Posada, Marañón river Locality Nauta, Loreto Department, Peru
DAVID ASCANIO 28 January 2011 1 year ago 35 sec 3.3 -
A bird calling once, regurgitating a seed and eventually flying away. Locality Phedra, Brokopondo District, Suriname (ssp acer)
Pieter de Groot Boersma 16 July 2011 25 weeks ago 22 sec 3
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Adult looking for insect prey
Locality Serra de Baturité, Ceará State, Brazil (ssp acer)
Arthur Grosset 18 October 2008 2 years ago 4.4
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One bird - Calls Locality Rorota Trail, Remire-Montjoly, French Guiana
(ssp acer)
Patrick Ingremeau 24 June 2010 1 year ago 4 -
Calls Locality Amazonia National Park, Pará State, Brazil
(ssp acer)
Jeremy Minns 5 September 2000 2 years ago 4 -
Calls by one bird. Locality Sao Gabriel da Cachoeira, Amazonas State, Brazil
(ssp gracilipes)
Josep del Hoyo 28 July 2011 35 weeks ago 2.7
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