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  1. ntbirdman


    Jessica A. Oswald, Michael G. Harvey, Rosalind C. Remsen, DePaul U. Foxworth, Donna L. Dittmann, Steven W. Cardiff, Robb T. Brumfield. Evolutionary dynamics of hybridization and introgression following the recent colonization of Glossy Ibis (Aves: Plegadis falcinellus) into the New World...
  2. ntbirdman

    Western Flycatcher

    New work on Cordilleran/Pacific-Slope Flycatchers: Ethan Linck, Kevin Epperly, Paul van Els, Garth M. Spellman, Robert W. Bryson Jr., Ricardo Canales-del-Castillo, John E. McCormack, John Klicka. Dense geographic and genomic sampling reveals paraphyly and a cryptic lineage in a classic sibling...
  3. ntbirdman


    David L Slager, Kevin L Epperly, Renee R Ha, Sievert Rohwer, Chris Wood, Caroline Van Hemert, John Klicka. Cryptic and extensive hybridization between ancient lineages of American crows. bioRxiv preprint: https://www.biorxiv.org/content/early/2018/12/10/491654 Twitter summary thread...
  4. ntbirdman

    New paper indicating a revision to the treatment of Melanerpes carolinus clade

    I sincerely hope no taxonomic bodies recognize M. perplexus as a species as recommended by this paper. I'm not even sure I'm convinced it is a subspecies. The "morphological zone of introgression" is over 2000km or the majority of the species' range. The Florida perplexus phenotype (a tan...
  5. ntbirdman


    Winker K, Glenn TC, Faircloth BC. (2018) Ultraconserved elements (UCEs) illuminate the population genomics of a recent, high-latitude avian speciation event. PeerJ Preprints 6:e27035v1 https://doi.org/10.7287/peerj.preprints.27035v1 Abstract: Using a large, consistent set of loci shared by...
  6. ntbirdman


    Species delimitation and biogeography of the gnatcatchers and gnatwrens (Aves: Polioptilidae). Brian Tilston Smith, Robert W. Bryson Jr., William M. Mauck III, Jaime Chaves, Mark B. Robbins, Alexandre Aleixo, John Klicka. Biorxiv: https://www.biorxiv.org/content/early/2018/02/26/271494...
  7. ntbirdman


    Billerman, S. M., Murphy, M. A. and Carling, M. D. (2016), Changing climate mediates sapsucker (Aves: Sphyrapicus) hybrid zone movement. Ecology and Evolution, 00: 1–15. doi: 10.1002/ece3.2507 Open access Abstract:
  8. ntbirdman

    Copsychus & Trichixos

    D'oh! I think you're right - my bad. Just to check, I quickly reran some of the cytb portion of the "Pseudopodoces" mitogenome and got 99-100% Ident to Phoenicurus ochruros cytb sequences.
  9. ntbirdman

    Copsychus & Trichixos

    I found the sequence on genbank (http://www.ncbi.nlm.nih.gov/nuccore/HM535648) and BLASTed just the ND2 and COI portions of the mitochondrial genome. ND2 came back as a 98% match to Aegithalos concinnus, but COI came back as 100% match to Phoenicurus auroreus and Luscinia cyanura and 99% to...
  10. ntbirdman


    Yes, they sampled bellus and its phylogenetic position is embedded within Australian and New Zealand samples of melanotus.
  11. ntbirdman


    Weird, I thought Cinnamon and Blue-winged Teal were embedded among the Shovelers (Gonzalez et al. 2009, and I thought other papers)? If they are excluded here I guess that must not be the case anymore?
  12. ntbirdman


    Update on redpolls from the Evolution 2014 Meeting currently underway. Abstract book available here. Differentially expressed genes unite phenotypes amidst undifferentiated anonymous loci in the phenotypically diverse redpoll finches (Acanthis) Nicholas Mason, Scott Taylor 1C_306B-Diversity and...
  13. ntbirdman

    Birds in a tree

    Not just falcons but it also groups owls with falcons and hawks. This supertree dataset includes both morphology and molecular trees. As you would expect based on their dietary convergence, morphology strongly groups the raptors (hawks, falcons, and owls) together despite all recent molecular...
  14. ntbirdman


    Basically, it doesn't look good for maintaining Wigeon as separate species but not the Green-winged Teal. The mitochondrial divergence between American and Eurasian Wigeon is actually less than that in the Green-winged Teal, despite stronger plumage divergence between the wigeons. Both Wigeon...
  15. ntbirdman

    Omani Owl

    Is there someplace we can read the text of the case? I can't find it.
  16. ntbirdman


    For an even shorter explanation, it's a measure of how related a community of species is. For a simple example, in a community of bird species (assemblage), if you find just one species from any particular family or genus, that's overdispersion. If you find a bunch of species in the same family...
  17. ntbirdman

    Yosemite NP Swallow?

    A swallow just shouldn't be that dark below. Why not a non-Chaetura swift, like Black?
  18. ntbirdman

    Sparrow ID, NJ, USA

    You're right - it's a Swamp Sparrow. A particularly sharply marked individual. I find they often look quite bold and lovely in the fall.
  19. ntbirdman

    Sparrow and a Hawk - Sask, Canada

    Yes and yes.
  20. ntbirdman


    Wow, no kidding, that was horrible. Is Pakistani Collared Dove considered a taxon by anyone, anywhere? I can find no reference to it. So can I get a quick paper by collecting some Eurasian Collared-Doves here in central Illinois, call it Illini Collared-Dove and describe how it is identical in...
  21. ntbirdman

    Several passerines, October, NY

    #1 - Yellow-rumped Warbler #3 - American Goldfinch #4 - Eastern Bluebird #2,5 - either a Eastern Wood-Pewee or an Empidonax sp. I'm leaning towards Empidonax. Seems late for either genus. Let's see what others think
  22. ntbirdman

    Unknown Warbler - Lancaster, Pennsylvania

    Female Black-throated Blue Warbler Among other things, note: white at the base of the primaries, faint dark mask through the eye, thin, short white supercilium, and a lack of really any other pattern.
  23. ntbirdman

    A couple from rural Arkansas

    Pine Warbler and Northern Flicker
  24. ntbirdman

    Surely a Blue-headed Vireo (Northern Virginia)?

    Indeed it is. Nice shot of a nice bird :)
  25. ntbirdman

    barred owl and few birds of song

    #1 - American Goldfinch #2 - Eastern Phoebe #3 - Blackburnian Warbler #4 - Barred Owl