Abstract
Summary Earle R. A. & Brooke, R. K. 1989. Taxonomy, distribution, migration and moult of the Redbreasted Swallow Hirundo semirufa. Ostrich: 60:151-158. There are two well defined races of the Redbreasted Swallow Hirundo semirufa, the nominate and gordoni. H. s. neumanni is a synonym of gordoni. The breeding ranges of the two races do not meet. The Redbreasted Swallow has extended its range south and southeast following the construction of concrete road culverts which provide nest sites, together with bush clearance. The strongly migratory southern populations reach their southern limits by August each ear and depart again mainly in March-April although there are some records for May. Males are significantly larger than females in wing length and the length of the longest rectrix but not in other measurements. Moulting birds were found in each month of the year but the moults of the two races are largely separated in time. Moulting birds were found only between 10S and 10N with the majority close to the eq...
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