Určování
PODPORUJE MERLIN
Poorly known and rarely seen medium-sized swift. Very local in west Mexico and very rarely identified in the field. Like many swifts, nests behind waterfalls. Rather stocky and large-headed, with a squared tail tip. About the same size as much commoner Chestnut-collared Swift, with which White-fronted can associate. Plumage looks wholly black unless seen close in good light, when white forehead can show up. Beware, slightly larger Black Swift has similar white forehead.
PODPORUJE MERLIN
Statistiky
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