. Bulletin der British Ornithologists' Club. Vögel. J. M. Cardoso da Silva 17 Bull. B.O.C. 1995 115 (1) CAATINGA BEVÖLKERUNG Venezuela, Guyanas und Amapá. Abbildung 1. Saisonale Verteilung von Proben und Aufzeichnungen entlang der 'Migration' der Caatinga Bevölkerung der gesäumt Seedeater. Feste Symbole entsprechen den möglichen Brutplätze, offenen Symbole, Städte und Gemeinden, in denen Einzelpersonen wintering aufgezeichnet wurden. Websites, auf denen die singen Personen aufgenommen wurden, sind durch Buchstaben gekennzeichnet (A = Zentrale - Nord Venezuela, Surinam, B=C=Belem, D=Paragominas). In den Diagrammen, die vertikale Achse gibt

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. Bulletin of the British Ornithologists' Club. Birds. J. M. Cardoso da Silva 17 Bull. B.O.C. 1995 115(1) CAATINGA POPULATION Venezuela, Guyanas, and Amapa. Figure 1. Seasonal distribution of specimen and sight records along the 'migration track' of the Caatinga population of the Lined Seedeater. Solid symbols represent possible breeding sites, open symbols localities where wintering individuals have been recorded. Sites where singing individuals were recorded are indicated by letters (A = central-north Venezuela, B = Surinam, C = Belem, D = Paragominas). In the graphs, vertical axis indicates percentage of the records, horizontal axis months. formed by Amapa, the Guianas and north-central Venezeula (n = 56) are quite similar to those for eastern Para (Fig. 1), but there are two differences: (a) the presumed absence of Lined Seedeaters in this region in September but not in October and (b) a small number of records (specimens collected in Cayenne and housed in CM) in February (3) and March (1), whose dates fall within the breeding season of the Caatinga population. The first difference is clearly misleading, because in a year-round study at one site in the Llanos region Thomas (1979) recorded Lined Seedeaters there in September. The second difference is more intriguing. Perhaps these records are of delayed individuals of the Caatinga population or, alternatively, they are of individuals from the southern population. Southern population I recorded individuals singing the southern population song at only one place in central Amazonia, Santarem (02°26'S, 54°42'W), where I observed adult males singing in the tops of small trees in varzea savannas in September and October 1985. This is the only vocal record known for this population outside its breeding area. Because no record of the Caatinga population song is known from central and western Amazonia, I have included all this region, from the left bank of the river Tocantins to southern Colombia and eastern Peru, in th

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