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

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  1. D

    Bogota skin

    Basically, in the early 1800s (primarily), European and American museums purchased specimens from local collectors in Colombia via some sort of clearing house in Bogota. In many cases, there was no information provided as to where the specimens actually were taken, but it is assumed that it was...
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    Turdidae

    Yes, there are Zoobank codes under each newly named taxon. Catharus arcanus sp. nov.: urn:lsid:zoobank.org:act:25B3DB71-FE5E-4FBF-A2CE-8D270CBA7250 Catharus berlepschi nebulus ssp. nov.: urn:lsid:zoobank.org:act:EAE392CC-A763-4E5E-8F6F-68921515C9A2 Catharus opertaneus tenebris ssp. nov...
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    Can a species that includes subspecies also stand alone?

    Are you asking: when a formerly monotypic species has a new subspecies named, which population becomes the nominate (receives the same name as the species name)? If so, then the answer is: whichever population is the one that was originally named becomes the nominate subspecies. That is to say...
  4. D

    Trochilidae

    I can't assess what you, or anyone else, saw... but if it was paler than a White-bellied Hummingbird it certainly doesn't sound like a Taphrospilus! They are more heavily speckled below and so would appear darker overall. If there are seasonal movements (certainly plausible), it would speak more...
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    Trochilidae

    Yes, it is at the San Marcos museum in Lima.
  6. D

    Trochilidae

    Is there evidence to look at? I am not aware of any besides the one specimen. While I was there I saw a lot of Amazilia chionogaster, but never a Taphrospilus.
  7. D

    Trochilidae

    Well, mostly. Basically, there has been no evidence that this species occurs at Ampay regularly and, assuming the initial specimen was actually collected there (and not accidentally mislabeled), we assumed it to represent an elevational vagrant of T. hypostictus. I think the reason it was...
  8. D

    Passeriformes

    It is my opinion that Bret has jumped at shadows on this one... the island form of M. maculatus is not appreciably different from nominate birds of the Guianan Shield area in plumage or voice. The last time I discussed the two populations with him, I think he basically agreed that that may be...
  9. D

    Olive Sparrow and Olive Warbler

    Welcome to the world of common bird names. Don't try to look for phylogenetic signal therein, you will be mostly very disappointed. But it does show how much convergence has occurred in bird evolution when it comes to morphology.
  10. D

    Olive Sparrow and Olive Warbler

    No, they are all still in the same family. You may be confused because of the recent separation of Passerellidae from Emberizidae, which means there are still a lot of sources that are not updated. In addition, many former members of "Emberizidae" in South America have been shifted to the...
  11. D

    Olive Sparrow and Olive Warbler

    Maybe, but I suspect it has to do with the fact that no one has called the committees' attention to the issue. Many/most allow proposals from outside the committee to make such corrections, it just requires someone to do it.
  12. D

    Olive Sparrow and Olive Warbler

    Interesting. Surprising that there has been no effort to have any of the main taxonomic committees accept this change.
  13. D

    Olive Sparrow and Olive Warbler

    I think you have this a bit confused. Olive Sparrow is part of the New World Sparrow family, Passerellidae, which includes all North American sparrows and towhees (minus the members of Passer: House and Eurasian Tree sparrows. These are the "true sparrows" in family Passeridae). Emberizidae is...
  14. D

    Olive Sparrow and Olive Warbler

    Is "Arremonidae" a family now? I thought New World Sparrows were Passerellidae. Even if Arremonidae was a family, its type genus would be Arremon, not Arremonops.
  15. D

    Fringillidae

    It seems this paper, despite the claim of being published electronically as of 17 July, is only available as an abstract on the defunct website of the journal, not on the new one here: https://openornithologyjournal.com/index.php But more interestingly, the lead author is also the journal's...
  16. D

    Pipridae

    I don't know... If your manuscript is greatly flawed with simple issues, do you want the general public to see that? If it is rejected, or if the submission-to-publication time is particularly long with some journal, what is to stop some unscrupulous second party from simply lifting your idea or...
  17. D

    Pipridae

    Don't get too excited, Josh. This is the unreviewed manuscript (why on Earth would that be made public?!). It is fraught with many problems, not least of which was a very poor understanding of the taxonomy and biogeography of the complex, and was rejected by the journal. Haven't heard anything...
  18. D

    Oscine/suboscine vocalisations

    I'd say shy of having to raise young of hundreds of species to see if they can learn songs or if their species-specific songs are innate, one can use the proxy of dialect forming. We know from our own species that we learn our vocalizations ("language," as it's widely known). An inherent part of...
  19. D

    Cinclodes

    Josh, this is not all that anomalous. SACC appreciates receiving proposals on any taxonomic issue that falls in their jurisdiction, whether the proposal is to support change or maintain status quo. I wrote such a proposal on Glaucidium (brasilianum) tucumanum a couple of years ago, for example...
  20. D

    Owls

    I will respond here, since I am named in this comment. I was entirely unaware of any need to register a new name, so may I ask how was this regulation disseminated? As far as I can tell, journals that regularly publish new taxa should be aware of changes in requirements, not necessarily the...
  21. D

    Owls

    Yes, the screech-owl Paul heard is that now known as M. gilesi.
  22. D

    The Swift and the Swallow and the Whip Poor Will.. What is what?

    This conversation has swayed a fair bit off the usual topic of this forum, but getting one started in understanding how organisms are evolutionarily related is part of what we do here. That said, your choice of source material for your observations is a bit concerning (the link above, for...
  23. D

    Species recognition between geographically isolated populations

    Some do. Several companies have guides who actively publish such work, and they credit the company for helping to fund the fieldwork necessary. I don't know if it is reasonable to ask a tour company to fund extensive fieldwork by researchers with whom they have no relationship, however...
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    Species recognition between geographically isolated populations

    Peter, I think you misunderstood my intent. "Gray literature" is that which has content, but is not published using "formal pathways" (i.e., peer-reviewed journals). Typically gray literature is not easily located unless the author already knows of its existence (environmental assement reports...
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    Species recognition between geographically isolated populations

    Hello Ben, I have to agree with Murray here. Between the goals of tours (to show birds to clients in a timely fashion, where the guide's most important concern is the clients' experience) and the protocols necessary to conduct scientifically viable playback experiments, I fear that the two would...
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