Yellow-bellied Seedeater (Sporophila nigricollis) Science Article 1 abstract This report on the Yellow-bellied Seedeater (Sporophila nigricollis) is part of a fiveyearstudy of the life histories of some common tropical birds of the Panama CanalZone. The species is widely distributed in the tropics and occurs in a variety of habitatsover a great range of altitude. On […]
Category: Latin America
Bill deformity in a White-winged Becard, Pachyramphus polychopterus,(Aves: Suboscines: Tityridae) from Minas Gerais, Brazil
White-winged Becard (Pachyramphus polychopterus) Science Article 1 abstract Bill deformities have been recorded for several bird species around the world. Craves (1994) presented a revision on bill deformities in passerines (Aves: Passeres), which was updated by the Rouge River Bird Observatory (University of Michigan-Dearborn 2004). Bill abnormalities are known to occur in low frequency in […]
Tanagra minuta, an addition to the Mexican list
White-winged Becard (Pachyramphus polychopterus) Science Article 2 abstract While examining bird skins in the collection of the Moore Laboratory of Zoology, Phillips found in a series of T.affinis a previously undetected specimen of the White-vented Euphonia T. minuta Cabanis. The specimen, apparently an adult male: is labeled Palenque, Chiapas, altitude 210 m, 9 May 1946, […]
Ecological relationships between feather mites (Acari) and wild birds ofEmberizidae (Aves) in a fragment of Atlantic Forest in northeastern Brazil
White-lined Tanager (Tachyphonus rufus) Science Article 1 abstract The objective of this study was to investigate feather mites on birds of the Family Emberizidae, tocollect data on the ecological ectoparasite-host relationship and infestation level. A sum of 94 birds of 9 specieswas captured at the Refugio Ecologico Charles Darwin, Igarassu, Pernambuco, Brazil, from August 1996 […]
First record of the White-flanked Antwren (Myrmotherula axillaris) in Mexico
White-flanked Antwren (Myrmotherula axillaris) Science Article 1 abstract The White:flanked Antwren Myrmotherula axillaris has a wide distribution in the tropical zone, from northeastern Honduras south through Central America to South America, west of the Andes, to northwestern Ecuador and, east of the Andes, to northern Bolivia and southeastern Brazil (A.O.U. 1983). The northernmost record was […]
Observations on the nesting and incubation behavior of the Tropical Gnatcatcher (Polioptila plumbea)
Tropical Gnatcatcher (Polioptila plumbea) Science Article 1 abstract OBSERVATIONS ON INCUBATION AND NESTING BEHAVIOR OF THE TROPICAL GNATCATCHER (POLIOPTILA PLUMBEA) IN EASTERN ECUADOR Erin C. Hannelly & Harold F. Greeney, Ornitologia Neotropical 15: 539-542 Download article download full text (pdf)
TIME AND ENERGY BUDGETS OF THE MOCKINGBIRD (MIMUS POLYGLOTTOS) DURING THE BREEDING SEASON
Tropical Mockingbird (Mimus gilvus) Science Article 2 abstract A time and energy budget of male and female Mockingbirds (Mimus polyglottos) in six phases of their breeding cycle was completed using the equivalent temperature model to predict perching metabolic rates. Recorded time-budget behaviors included perching, bipedal locomotion, flight, and the time spent in the sun and […]
Bigamy in a Male Mockingbird
Tropical Mockingbird (Mimus gilvus) Science Article 1 abstract Like many passerine species, the Mockingbird (Mimus polyglottos) is thought to be highly monogamous. Laskey (1935, Auk 52: 370), for example, reports perennial pair bonding between identified males and females, even though the female may leave for the fall and return to the same male during the […]
THE NESTING OF SOME VENEZUELAN BIRDS
Tropical Mockingbird (Mimus gilvus) Science Article 3 abstract I passed the interval from 15 March to 24 July 1966 at ‘La Araguata,’ a large cattle farmsituated among the hills near Pirapira, some 20 miles south of Valencia in the state ofCarabobo, Venezuela. Although most of my time was devoted to the study of the RufousfrontedThornbird […]
New records concerning range and altitudinal distribution ofTropical Mockingbird Mimus gilvus in Ecuador
Tropical Mockingbird (Mimus gilvus) Science Article 4 abstract Se reportan dos nuevas localidades para el Sinsonte Colilargo Mimus gilvus en Ecuador. Junto aestos registros la especie es conocida por cuatro observaciones en el pais, todas ubicadas en losAndes del norte de Ecuador. Se sugiere que Mimus gilvus puede estar extendiendo su rango dedistribucion desde Colombia, […]