Second Documented Record Of The Rufous-fronted Antthrush, Formicarius Rufifrons (aves: Formicariidae), In Brazil

We present the second documented record of the Rufous-fronted Antthrush Formicarius rufifrons Blake, 1957 in Brazil. The record was made in Ramal do Riozinho do Rola, 45 km north of Rio Branco municipality, Acre state. The recordings were deposited in the archives of Xeno-canto and Wikiaves. Our record represents a distribution extension of 247 km northeast of the closest known location. © 2016 Check List and Authors.12

Aspects Of The Reproductive Biology Of Syrigma Sibilatrix (ardeidae, Aves) [aspectos Da Biologia Reprodutiva De Syrigma Sibilatrix (ardeidae, Aves)]

A nest (12.7 m height) of Syrigma sibilatrix was studied on the campus of UNESP Rio Claro (São Paulo, Brazil). The nest was in a fork in the tree Machaerium nyctitans (Leguminosae). Focal observations (n = 103 h) were carried out from 13 September 2004 to 1 November 2004. The male and female both participated in nest building, which took 37 days, mainly between 05:00h - 11:00h. Sticks for the nest were collected at the rate of 5.7 ± 3.4 sticks hour-1, most by the male. The nest included 197 sticks, and was a fl at platform with diameter = 75cm, and depth = 14 cm. A single egg was laid and was incubated (by both sexes) for 66h57 (92% of the time of permanence of the individuals in the nest). The egg was moved 97 times (1.34 times/hour). A strong storm caused the egg to fall, interrupting the study.142161163Belton, W., (2003) Aves do Rio Grande do Sul: Distribuiç ão e biologia, , São Leopoldo: UNISINOSde la Peña, M.R., Notas nidologicas sobre garzas (Aves: Ardeidae) (1980) Hist. Nat, 1, pp. 161-168de la Peña, M.R., (1996) Ciclo reproductivo de las aves argentinas, , Buenos Aires: Literature of Latin Americadel Hoyo, J., Elliott, A. e J. Sargatal (eds) (1992) Handbook of the birds of the world. v. 1. Ostrichs to ducks. Barcelona: Lynx EdicionsDeveley, P.F., Endrigo, E., (2004) Aves da grande, , São Paulo. São Paulo: Aves e Fotos EditoraDi Giacomo, A.G., Nidifi cación del chifl ón (Syrigma sibilatrix) en Salto, Buenos Aires, Argentina. (1988) El Hornero, 13, pp. 1-7Hancock, J., (1999) Herons and egrets of the world, , San Diego: Academic PressKahl, M.P., Some observations on the behavior of Whistling Herons (1971) Wilson Bulletin, 83, pp. 302-303Reinert, B.L., Bornschein, M.R., Belmonte-Lopes, R., Conhecendo aves silvestres brasileiras (2004) Cornélio Procópio: Grupo Ecológico Vida Verde de Cornélio ProcópioSchubart, O., Aguirre, A.C., Sick, H., Contribuição para o conhecimento da alimentação das aves brasileiras. (1965) Arquivos de Zoologia, 12, pp. 95-249Sick, H., (1997) Ornitologia brasileira, , Rio de Janeiro: Nova Fronteir