From: 'Tony Leukering' via Colorado Birds <cobirds...>
Sent: Monday, February 16, 2026 4:22 PM
To: Colorado Birds <cobirds...>
Subject: [cobirds] Re: Documenting crossbills, warbling-vireos, etc.
All:
I cannot agree more thoroughly with Ted's cautions about Merlin, and, particularly, his cautions once we get into the warbling-vireo season. I, too, find many warbling vireo songs far from cut-and-dried enumerators of species, and please, please, please, don't take Merlin's word on it as gospel. Save the recording. Save the spectrogram. Both species have been detected during the breeding season at Barr Lake, and there's absolutely no guarantee against warbling-vireo hanky-panky. We want our understanding of the occurrence parameters in eastern Colorado to be based on provable facts, not intuition, supposition, or blind trust in technology.
Enjoy,
Tony Leukering
Denver
On Sunday, February 15, 2026 at 7:03:21 PM UTC-7 Ted Floyd wrote:
