Category: Thamnophilidae

The Rufous-Rumped Antwren (Terenura callinota) in Costa Rica

Rufous-rumped Antwren (Terenura callinota) Science Article 1 abstract Rufous-rumped Antwren (Terenura callinota) has a wide distribution from southern Middle America to Guyana and Peru, but is known chiefly from a handful of specimens from widely scattered localities. GARY STILES, Wilson Bulletin: Vol. 95, No. 3 Download article download full text (pdf)

Territory switching behavior in a sedentary tropical passerine, the dusky antbirds Cercomacra tyrannina

Dusky Antbird (Cercomacra tyrannina) Science Article 1 abstract Demographic data from an 8-year study of a marked population showed that switching territories and mates is common in both genders of dusky antbirds (Cercomacra tyrannina), a sedentary neotropical passerine with year-round territories and pairbonds. We conducted 22 experimental removals and followed six natural disappearances to examine […]

FORAGING BEHAVIOR, ECO-MORPHOLOGY, AND SYSTEMATICS OF SOME ANTSHRIKES (FORMICARIIDae: THAMNOMANES)

Dusky-throated Antshrike (Thamnomanes ardesiacus) Science Article 1 abstract The external morphology of a bird is a reflection of two factors: phylogeny and adaptations to the environment. Traditionally birds have been classified by systematists on the basis of similarities in morphology, especially at lower taxonomic ranks. Ecologists frequently study the same morphological characters used by systematists […]

COOPERATIVE ROLES IN MIXED FLOCKS OF ANTWRENS (FORMICARIIDae)

Dot-winged Antwren (Microrhopias quixensis) Science Article 2 abstract Under certain conditions, flocking might enhance the foraging efficiencies of some or all the participating in- dividuals. For instance, individuals might capture insects flushed by other members of the flock (Swynnerton, 1915; Brosset, 1969), or flocks might exploit patches of abundant food more efficiently than solitary individuals […]

SEXUAL ROLES IN THE DOT-WINGED ANTWREN (MICRORHOPIAS QUIXENSIS), A TROPICAL FOREST PASSERINE

Dot-winged Antwren (Microrhopias quixensis) Science Article 1 abstract Dot-winged Antwrens maintain long-term pair bonds on year-long territories in tropical forests and woodland of Central and South America. Pairs partition breeding-related activities nearly equally. Like other antbirds (Formicariidae), both sexes incubate and brood. Both sexes participate equally in territorial maintenance behavior, which primarily involves active border […]

NOTES ON THE LIFE HISTORY OF THE BLACK-CRESTEDANT SHRIKE IN SURINAM

Black-crested Antshrike (Sakesphorus canadensis) Science Article 1 abstract The Black-crested Ant Shrike (Sakesphorus cayanensis) is a mediumsized member of the large, neotropical family of antbirds (Formicariidae). In the male the head, sides of face, throat, and breast are uniform black. The abdomen and sides of the breast are slate gray, while the upper back is […]

Brown-bellied Antwren (Myrmotherula gutturalis)

Brown-bellied Antwren (Myrmotherula gutturalis) [order] PASSERIFORMES | [family] Thamnophilidae | [latin] Myrmotherula gutturalis | [UK] Brown-bellied Antwren | [FR] Fourmilier nain a ventre brun | [DE] Braunbauch-Ameisenschlupfer | [ES] Hormiguerito Ventripardo | [NL] Bruinbuikmiersluiper Subspecies Monotypic species Physical charateristics Male is olive brown above, wings and tail reddish brown. Wing coverts with white tips. Black […]

Rufous-throated Antbird (Gymnopithys rufigula)

Rufous-throated Antbird (Gymnopithys rufigula) [order] PASSERIFORMES | [family] Thamnophilidae | [latin] Gymnopithys rufigula | [UK] Rufous-throated Antbird | [FR] Manikup a gorge rousse | [DE] Rotkehl-Ameisenvogel | [ES] Hormiguero Gorgirrufo | [NL] Roodkeelmiervogel Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Gymnopithys rufigula SA nc, ne Amazonia Gymnopithys rufigula pallidigula Gymnopithys […]

Cinereous Antshrike (Thamnomanes caesius)

Cinereous Antshrike (Thamnomanes caesius) [order] PASSERIFORMES | [family] Thamnophilidae | [latin] Thamnomanes caesius | [UK] Cinereous Antshrike | [FR] Fourmilier pie-grieche cendre | [DE] Buschwurgerling | [ES] Batara Cinereo | [NL] Temmincks Mierklauwier Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Thamnomanes caesius SA Amazonia, e,se Brazil Thamnomanes caesius caesius Thamnomanes […]

Rusty-backed Antwren (Formicivora rufa)

Rusty-backed Antwren (Formicivora rufa) [order] PASSERIFORMES | [family] Thamnophilidae | [latin] Formicivora rufa | [UK] Rusty-backed Antwren | [FR] Fourmilier nain a dos rouille | [DE] Zimtrucken-Ameisenfanger | [ES] Hormiguerito Dorsirrufo | [NL] Roestrugmiersluiper Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Formicivora rufa SA Amazonia, e Brazil, c SA Formicivora […]