French: Martinet à gorge blanche German: Weißbrustsegler Spanish: Vencejo gorjiblanco
Inscription Rock, New Mexico, USA
Subspecies and Distribution
A. s. saxatalis
(Woodhouse, 1853) – SW Canada (S British Columbia) S through W USA to S Mexico (Oaxaca) W of Caribbean lowlands.
A. s. nigrior
Dickey & van Rossem, 1928 – highlands of S Mexico (Chiapas) to C Honduras.
15–18 cm; male mean 34·2 g, female mean 32·3 g. Plumage pattern very distinctive; only other swifts with some white in plumage sharing part of same range... read more
Gives a shrill, descending “skeeeeee” or “kee-kee-kee-kee”, audible at long range and given... read more
A montane species found to 3000 m in Mexico and 2450 m in Guatemala, but sometimes descending to... read more
Food and feeding
Total of 21 stomachs contained Diptera, mainly Anthomyiidae, with fewer Dolichipodidae, Sarcophagidae and Bibionidae, Coleoptera,... read more
Laying early May to late Jun, peaking late May to early Jun, California; clutches recorded mid-May to early Jul and broods early Jun... read more
Nominate race partial migrant. Present British Columbia in far N of range, early Apr to late Sept,... read more
Status and conservation
Not globally threatened. Common throughout much of North American range, but rare in Mexico and uncommon in Honduras. Considered uncommon to fairly common in recent census of... read more
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