Species fact sheet by Global Register of Migratory Species - www.groms.de

Aeronautes saxatalis (Woodhouse, 1853) Family: Apodidae Order: Apodiformes Back
White-throated swift Weißbrustsegler Martinet à gorge blanche Vencejo gorgiblanco
CMS NL Redlist 2000 (Criteria) NL CITES NL (Europe: SPEC threat status )
Migration: partial

Aeronautes saxatalis

Nominate race partial migrant. Present British Columbia in far N of range, early Apr to late Sept, most departing from late Aug. Migrant Californian population present mid-Mar to mid-Oct. Winters S California and Nevada where absent from coldest areas; it has been suggested that predominance of coastal winter records in Baja California suggests at least limited seasonal altitudinal movements. Most winter farther S, some as far as Honduras. Migrates in flocks, up to 50. Rarely recorded SE Farallon Is, 42 km W of Francico, during Apr and mid-late Oct. Race nigrior resident. Data from Belize unconfirmed.
(del Hoyo J A Elliott; J Sargatal (eds) (1999) - www.hbw.com )

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Explanatory notes
(Last update: 05.08.02 by E.Heuel)

Populations