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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Chestnut-capped Warbler (1 Viewer)


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IOC seems to have this one (Basileuterus delattrii) as a full species; anyone knows why? (this is the note from SACC: The delatrii group of subspecies, from Guatemala south to northwestern South America, was formerly (e.g., Hellmayr 1935) treated as separate species from the Basileuterus rufifrons of (mainly) Mexico, but they evidently intergrade in Guatemala and Honduras (Monroe 1968, AOU 1983).)

Thanks. You are not aware of any new publications about how big the zone truly is?

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