So I just went to a pretty amazing country, and saw some pretty amazing stuff...
BIRDS:
Day 1:
420) Black vulture, Coragyps atratus
421) Great-tailed grackle, Quiscalus mexicanus
422) Grey-breasted martin, Progne chalybea
423) Neotropic cormorant, Phalacrocorax brasilianus
424) Tropical mockingbird, Mimus gilvus
425) Wood stork, Mycteria americana
Day 2:
426) Clay-coloured thrush, Turdus grayi
427) Great kiskadee, Pitangus sulphuratus
428) Ruddy ground dove, Columbina talpacoti
429) Rufous-tailed hummingbird, Amazilia tzacatl
430) Variable seedeater, Sporophila corvina
431) Crimson-backed tanager, Ramphocelus dimidiatus
432) Palm tanager, Thraupis palmarum
433) Orange-chinned parakeet, Brotogeris jugularis
434) Tropical kingbird, Tyrannus melancholicus
435) House wren, Troglodytes aedon
436) White-collared swift, Streptoprocne zonaris
437) Blue-grey tanager, Thraupis episcopus
438) Barred antshrike, Thamnophilus doliatus
439) Pale-vented pigeon, Patagioenas cayennensis
440) Social flycatcher, Myiozetetes similis
441) Red-crowned woodpecker, Melanerpes rubricapillus
442) Lineated woodpecker, Dryocopus lineatus
443) Blue-headed parrot, Pionus menstruus
444) Buff-breasted wren, Cantorchilis leucotis
445) Streaked flycatcher, Myiodynastes maculatus
446) Turkey vulture, Cathartes aura
447) Keel-billed toucan, Ramphastos sulfuratus
448) White-shouldered tanager, Tachyphonus luctuosus
449) Thick-biled euphonia, Euphonia laniirostris
450) Whooping motmot, Momotus subrufescens
451) Red-crowned ant-tanager, Habia rubica
452) Fasciated antshrike, Cymbilaimus lineatus
453) Red-throated ant-tanager, Habia fuscicauda
454) Dusky-capped flycatcher, Myiarchus tuberculifer
455) Short-tailed swift, Chaetura brachyura
456) Fork-tailed flycatcher, Tyrannus savana
457) Magnificent frigatebird, Fregata magnificens
458) Brown pelican, Pelecanus occidentalis
459) American darter, Anhinga anhinga
460) Southern rough-winged swallow, Stelgidopteryx ruficollis
461) Mangrove swallow, Tachycineta albilinea
462) Garden emerald, Chlorostilbon assimili
463) Lesser kiskadee, Pitangus lictor
464) Yellow-headed caracara, Milvago chimachima
465) Common tody-flycatcher, Todirostrum cinereum
466) Yellow-crowned night heron, Nyctanassa violacea
467) Southern lapwing, Vanellus chilensis
468) Laughing gull, Leucophaeus atricilla
Day 3:
469) Red-lored amazon, Amazona autumnalis
470) American white ibis, Eudocimus albus
471) Long-billed hermit, Phaethornis longirostris
472) Slaty-tailed trogon, Trogon massena
473) Checker-throated antwren, Epinecrophylla fulviventris
474) Grey-headed tanager, Eucometis penicillata
475) Cocoa woodcreeper, Xiphorhynchus susurrans
476) Scarlet-rumped cacique, Cacicus microrhynchus
477) Yellow-rumped cacique, Cacicus cela
478) Broad-billed motmot, Electron platyrhynchum
479) Black-throated trogon, Trogon rufus
480) Masked tityra, Tityra semifasciata
481) Black-bellied whistling-duck, Dendrocygna autumnalis
482) Scaled pigeon, Patagioenas speciosa
483) Ringed kingfisher, Megaceryle torquata
484) Roadside hawk, Rupornis magnirostris
485) Yellow-crowned amazon, Amazona ochrocephala
Day 4:
486) Streaked saltator, Saltator striatipectus
487) Saffron finch, Sicalis flaveola
488) Panamaian flycatcher, Myiarchus panamensis
489) Northern crested caracara, Caracara cheriway
490) Little blue heron, Egretta caerula
491) Willet, Tringa semipalpata
Day 5:
492) White-tipped dove, Leptotila verreauxi
493) White-tailed kite, Elanus leucurus
494) Brown booby, Sula leucogaster
495) Groove-billed ani, Crotophaga sulcirostris
496) Spotted woodcreeper, Xiphorhynchus eryhtropygius
497) Boat-billed flycatcher, Megarynchus pitangua
Day 6:
498) Smooth-billed ani, Crotophaga ani
499) Collared aracari, Pteroglossus torquatus
500) Black-chested jay, Cyanocorax affinis
501) Yellow-faced grassquit, Tiaris olivaceus
502) Black-cheeked woodpecker, Melanerpes pucherani
503) Chestnut-headed oropendola, Psarocolius wagleri
504) Crowned woodnymph, Thalurania colombica
505) Bay-headed tanager, Tangara gyrola
506) Silver-throated tanager, Tangara icterocephala
507) Southern nightingale-wren, Microcerculus marginatus
508) Shining honeycreeper, Cyanerpes lucidus
509) White-necked jacobin, Florisuga mellivora
510) Stripe-throated hermit, Phaethornis striigularis
511) Spot-crowned antvireo, Dysithamnus puncticeps
512) Pale-vented thrush, Turdus obsoletus
513) Squirrel cuckoo, Piaya cayana
514) Tawny-capped euphonia, Euphonia anneae
515) Tooth-billed tanager, Piranga lutea
516) Tawny-crested tanager, Tachyphonus delatrii
517) Common black hawk, Buteogallus anthracinus
518) Savanna hawk, Buteogallus meridionalis
519) White-winged dove, Zenaida asiatica
520) Grey-capped flycatcher, Myiozetetes granadensis
521) Bat falcon, Falco rufigularis
Day 7:
522) Blue-black grassquit, Volatinia jacarina
523) Sapphire-throated hummingbird, Lepidopyga coeruleogularis
524) Lesser yellow-headed vulture, Cathartes burrovianus
525) American oystercatcher, Haematopus palliatus
526) Bronzed cowbird, Molothrus aeneus
527) Lance-tailed manakin, Chiroxiphia lanceolata
528) Brown-throated parakeet, Eupsittula pertinax
529) Snowy egret, Egretta thula
Day 8:
530) Wattled jacana, Jacana jacana
531) Scaly-breasted hummingbird, Phaeochroa cuvierii
Day 9:
532) Bare-throated tiger heron, Tigrisoma mexicanum
533) Short-billed pigeon, Patagioenas nigrirostris
534) Crested oropendola, Psarocolius decumanus
535) Piratic flycatcher, Legatus leucophaius
536) Rufous-collared sparrow, Zonotrichia capensis
537) Blue ground dove, Claravis pretiosa
538) Red-legged honeycreeper, Cyanerpes cyaneus
539) White-naped brushfinch, Atlapetes albinucha
540) Chestnut-capped brushfinch, Arremon brunneinucha
541) Lesson's motmot, Momotus lessonii
542) White-throated thrush, Turdus assimilis
543) Snowy-bellied hummingbird, Amazilia edward
Day 10:
544) Orange-billed nightingale-thrush, Catharus aurantiirostris
545) Flame-coloured tanager, Piranga bidentata
546) Mountain thrush, Turdus plebejus
547) Lesser goldfinch, Spinus psaltria
548) Rufous-capped warbler, Basileuterus rufifrons
549) Lesser greenlet, Hylophilus decurtatus
550) Isthmian wren, Cantorchilus elutus
551) Buff-throated saltator, Saltator maximus
552) Lesser elaenia, Elaenia chiriquensis
553) Blue-and-white swallow, Notiochelidon cyanoleuca
554) White-throated mountaingem, Lampornis castaneoventris
555) Lesser violetear, Colibri
556) Scintillant hummingbird, Selasphorus scintilla
557) Green-crowned brilliant, Heliodoxa jacula
558) Purple-throated mountaingem, Lampornis calolaemus
559) Yellow-bellied elaenia, Elaenia flavogaster
560) Dark pewee, Contopis lugubris
561) Black-faced solitaire, Myadestes melanops
562) Violet sabrewing, Campylopterus hemileucurus
563) Scarlet-thighed dacnis, Dacnis venusta
564) Swallow-tailed kite, Elanoides forficatus
565) Rufous-and-white wren, Thryophilus rufalbus
566) Mountain elaenia, Elaenia frantzii
567) Scarlet-rumped tanager, Ramphocelus passerinii
Day 11:
568) Slate-throated whitestart, Myioborus miniatus
569) Vaux's swift, Chaetura vauxi
570) Acorn woodpecker, Melanerpes formicivorus
571) Elegant euphonia, Euphonia elegantissima
572) Ruddy treerunner, Margarornis rubiginosus
573) Silvery-fronted tapaculo, Scytalopus argentifrons
574) Black guan, Chamaepetes unicolor
575) Ruddy-capped nightingale-thrush, Catharus frantzii
576) Resplendent quetzal, Pharomachrus mocinno
577) Sooty-capped chlorospingus, Chlorospingus pileatus
578) Spot-crowned woodcreeper, Lepidocolaptes affinis
579) Collared trogon, Trogon collaris
580) Tufted flycatcher, Mitrephanes phaeocercus
581) Green kingfisher, Chloroceryle americana
582) Black phoebe, Sayornis nigricans
Day 12:
583) Band-tailed pigeon, Patagioenas fasciata
584) White-winged tanager, Piranga leucoptera
585) Brown-capped vireo, Vireo leucophrys
586) Bicoloured hawk, Accipiter bicolor
587) Green heron, Butorides virescens
588) Green-breasted mango, Anthracothorax prevostii
589) Tropical pewee, Contopus cinereus
590) Bananaquit, Coereba flaveola
591) Plain-coloured tanager, Tangara inornata
592) White-lined tanager, Tachyphonus rufus
593) Olive-throated parakeet, Eupsittula nana
Day 13:
594) Thick-billed seed finch, Oryzoborus funereus
595) Montezuma oropendola, Psarocolius montezuma
596) Giant cowbird, Molothrus oryzivorus
597) Blue-chested hummingbird, Amazilia amabilis
598) Golden-collared manakin, Manacus vitellinus
599) Tropical gnatcatcher, Polioptila plumbea
600) Band-tailed barbthroat, Threnetes ruckeri
601) Bay wren, Cantorchilus nigricapillus
602) Stub-tailed spadebill, Platyrinchus cancrominus
Day 14:
/
Day 15:
603) Muscovy duck, Cairina moschata
604) Crimson-fronted parakeet, Psittacara finschi
Day 16:
605) Grey-headed chachalaca, Ortalis cinereiceps
606) Golden-hooded tanager, Tangara larvata
607) Grey-necked wood rail, Aramides cajaneus
608) Pauraque, Nyctidromus albicollis
Day 17:
609) Yellow-bellied seedeater, Sporophila nigricollis
610) Green hermit, Phaethornis guy
611) Slaty antwren, Myrmotherula schisticolor
612) Black-faced grosbeak, Caryothraustes poliogaster
613) Green honeycreeper, Chlorophanes spiza
614) Brown-hooded parakeet, Pyrilia haematotis
Day 18:
615) Boat-billed heron, Cochlearius cochlearius
616) Rufous-breasted wren, Pheugopedius rutilus
617) Shiny cowbird, Molothrus bonariensis
618) Yellow-crowned euphonia, Euphonia luteicapilla
619) Black-striped sparrow, Arremonops conirostris
620) Lemon-rumped tanager, Ramphocelus icteronotus
621) Spot-crowned barbet, Capito maculicoronatus
622) Spectacled owl, Pulsatrix perspicillata
623) Black-headed saltator, Saltator atriceps
624) Mistletoe tyrannulet, Zimmerius parvus
625) Plain-brown woodcreeper, Dendrocincla fuliginosa
626) Plain xenops, Xenops minutus
627) Emerald tanager, Tangara florida
Day 19:
628) White hawk, Pseudastur albicollis
MAMMALS:
30) Central American agouti, Dasyprocta punctata
31) Brown-throated three-toed sloth, Bradypus variegatus
33) Variegated squirrel, Sciurus variegatoides
34) White-nosed coati, Nasua narica
35) Red-tailed squirrel, Sciurus granatensis
36) White-tailed deer, Odocoileus virginianus
37) Hoffmann's two-toed sloth, Choloepus hoffmanni
38) Mantled howler monkey, Alouatta palliata (ssp trabeata, CR)
39) White-faced capuchin, Cebus capucinus
40) Central American dwarf squirrel,
Microsciurus alfari
HERPS:
20) Mourning gecko, Lepidodactylus lugubris
21) Central American ameiva, Holcosus festivum
22) Leaf-litter toad, Rhinella alata
23) Common green iguana, Iguana iguana
24) Black iguana, Ctenosaura similis
25) Rainforest rocket frog, Silverstoneia flotator
26) Warszewitsch's frog, Lithobates warszewitschii
27) Grass anole, Anolis auratus
28) Cane toad, Rhinella marina
29) Giant ameiva, Ameiva ameiva
30) Yellow-headed gecko, Gonatodes albigularis
31) Strawberry poison dart frog, Oophaga pumilio
32) Tropical house gecko, Hemidactylus mabouia
33) Brown basilisk, Basiliscus vittatus
Inverts and fish (if I can identify any) and potential corrections or additions on bird/mammal/herp front will follow later. Panama (and probably the rest of Latin America) is fantastic, and resplendent quetzals definitely deserve all the hype they receive! I don't think I'll get away with not making a thread about this trip, so expect that some time in the near future!