ANNOTATED BIRD LIST

Guerrero, Mexico

MARCH 30 - APRIL 9, 2018

KEY TO BIRD SURVEY LOCATIONS (see main text for details)

Zihuatanejo (ZO)

Old Road Zihuatanejo - Ixtapa (OR)

Troncones (TR)

Manzanillo Beach (MB)

Parrot Track, Troncones (PT)

Boca de Lagunillas (BL)

Refugio de Potosi (RP)

Carizzo Lagoon (CL)

Laguna de Potosi (LP)

Los Morros (Barra de Potosi) (LM)

KEY TO TERMINOLOGY and NUMERICAL USAGE

Male (m); Female (f); Immature (imm)

Aerial feeding (AER); Foliage Gleaning (GLN); Seed or fruit-eating (SE); Diving (DV).

Mixed Species Flock (MSF).

Nesting: construction or occupation (NST).

Numbers following each species entry, 1,2,3.... indicate the maximum number found during a single survey.

TAXONOMY and SYSTEMATICS

American Ornithologists Union (2017, including 58th supplement): Checklist of Birds of North and Middle America.

BIRDS NOTED

ANSERIFORMES

Anatidae

Blue-winged Teal (Spatula discors) 120 (m,f) gregarious on and near shore, CL (photo)

Blue-winged Teal (Spatula discors) male Carrizo Lagoon, Refugio de Potosi, Guerrero MX 3 April 2018

Northern Shoveler (Spatula clypeata) 2 (f) in shallows and on shore, CL

GALLIFORMES

Cracidae

West Mexican Chachalaca (Ortalis poliocephala) 1 vocal; around pond, RP; 1 in hillside trees, ZO (photo)

West Mexican Chachalaca (Ortalis poliocephala) Zihuatanejo, Guerrero MX 31 March 2018

COLUMBIFORMES

Columbidae

Eurasian Collared Dove (Streptopelia decaocto) 1 with other doves and pigeons in town TR

Feral Rock Pigeon (Columba livia) 10 flying around LP

Inca Dove (Columbina inca) 8 (NST) gregarious ZO; 6 LP; 3 RDP (photo)

Inca Dove (Columbina inca) Refugio de Potosi, Guerrero MX 3 April 2018

Common Ground Dove (Columbina passerina) 4 TR; 2 OR

Ruddy Ground Dove (Columbina talpacoti) 4 gregarious,TR; 2 LP; 4 ZO

Ruddy Ground Dove (Columbina talpacoti) Zihuatanejo, Guerrero MX 9 April 2018

White-tipped Dove (Leptotila verreauxi) 1 ZO

White-winged Dove (Zenaida asiatica) 6 ZO

CUCULIFORMES

Cuculidae

Groove-billed Ani (Crotophaga sulcirostris) 5 gregarious; foraging together on ground in parking area, LP (photo)

Groove-billed Ani (Crotophaga sulcirostris) Laguna de Potosi, Guerrero MX 5 April 2018

CAPRIMULGIFORMES

Caprimulgidae

Common Paraque (Nyctidromus albicollis) 2 on road, predawn near entrance of RP.

APODIFORMES

Trochilidae

Plain-capped Starthroat (Heliomaster constantii) 5 (m,f) common at feeders, RP

Plain-capped Starthroat (Heliomaster constantii) Refugio de Potosi Guerrero MX 3 April 2018

Ruby-throated Hummingbird (Archilochus colubris) 1 (f) at feeder, RP (photo)

Ruby-throated Hummingbird (Archilochus colubris) female Refugio de Potosi Guerrero MX 3 April 2018

Black-chinned Hummingbird (Archochilus alexandri) 1 (f) at feeder, RP

Doubleday's Broad-billed Hummingbird (Cyanthus doubledayi) 2 ZO; 8 common at feeders, RP (photo)

Doubleday's Broad-billed Hummingbird (Cyanthus doubledayi) Refugio de Potosi, Guerrero MX 3 April 2018

Cinnamon Hummingbird (Amazilla rutila) 8 common at feeders, RP; 6 around flowering shrubs, ZO

GRUIFORMES

Rallidae

Common Moorhen (Gallinula chloropus) 2 swimming near shore, CL

American Coot (Fulica americana) 20 gregarious close to shore, CL

CHARADRIIFORMES

Recurvirostridae

Black-necked Stilt (Himantopus mexicanus) 20 in pairs and loose flocks in shallows and on shore, CL (photo)

Black-necked Stilt (Himantopus mexicanus) Carrizo Lagoon Refugio de Potosi, Guerrero MX 3 April 2018

American Avocet (Recurvirostra americana) 30 gregarious on and near shore, CL

Charadriidae

Semipalmated Plover (Charadrius semipalmatus) 2 edge of estuary-beach, TR (photo)

Semipalmated Plover (Charadrius semipalmatus) Troncones, Guerrero MX 6 April 2018

Jacanidae

Northern Jacana (Jacana spinosa) 2 walking on shore, BL (photo)

Northern Jacana (Jacana spinosa) Boca de Lagunillas, Manzanillo Bay, Guerrero MX 1 April 2018

Scolopacidae

Whimbrel (Numenius phaeopus) 2 edge of estuary, LP

Least Sandpiper (Calidris minutilla) 3 gregarious, foraging in sludge at edge of canal, ZO (photo); 2 CL.

Least Sandpiper (Calidris minutilla) Zihuatanejo, Guerrero MX 9 April 2018

Western Sandpiper (Calidris mauri) 16, edge of lagoon and on shore, CL

Spotted Sandpiper (Actitis macularius) (alt. plmg.) 1 ZO; 1TR, 1 running on shore, CL (photo)

Spotted Sandpiper (Actitis macularius) Carizzo Lagoon RDP, Guerrero MX 3 April 2018

Willet (Tringa semipalmata) 6 LP; 2 TR

Lesser Yellowlegs (Tringa flavipes) 2 foraging in shallows near shore, CL

Lesser Yellowlegs (Tringa flavipes) Carizzo Lagoon, RDP Guerrero MX 3 April 2018

Greater Yellowlegs (Tringa melanoleuca) 2 in shallows, CL

Laridae

Laughing Gull (Leucophaeus atricilla) 8 on shore with BLSK, LP

Least Tern (Sternula antillarum) 2 flying low over lagoon, CL

Royal Tern (Thalasseus maximus) 2 on shore with BLSK, LP

Black Skimmer (Rynchops niger) 100 gregarious; on shore and flying over estuary LP (photo)

Black Skimmer (Rhynchops niger) Laguna de Potosi, Guerrero MX 5 April 2018

PHAETHONTIFORMES

Phaethontidae

Red-billed Tropicbird (Phaethon aethereus) 3 circling rocks with BRBO, LM (photo)

Red-billed Tropicbird (Phaethon aethereus) Los Morros, BDP Guerrero, MX 5 April 2018

CICONIIFORMES

Ciconidae

Wood Stork (Mycteria americana) 1 (imm) foraging in canal ZO (photo); 3 (ad, imm) CL

Wood Stork (Mycteria americana) immature Zihantanejo, Guerrero MX 31 March 2018

Fregatidae

Magnificent Frigatebird (Fregata magnificens) 3 circling bay near shore, ZO; 2 LP; 20 LM

Magnificent Frigatebird (Fregata magnificens) Zihuatanejo, Guerrero MX 31 March 2018

SULIFORMES

Sulidae

Brown Booby (Sula leucogaster) 120 gregarious; many perched together on rocks, LM (photo)

Brown Booby (Sula leucogaster) Los Morros, BDP Guerrero MX 5 April 2018

Phalacrocoracidae

Neotropic Cormorant (Phalacrocorax brasilianus) 4 gregarious ZO; 20 CL (photo)

Neotropic Cormorant (Phalacrocorax brasilianus) imm Carizzo Lagoon RDP Guerrero MX 3 April 2018

Anhingidae

Anhinga (Anhinga anhinga) 15 (ad, imm) gregarious, CL; 3 LP

Anhinga (Anhinga anhinga) immature Carizzo Lagoon RDP, Guerrero MX 3 April 2018

PELECANIFORMES

Pelecanidae

Brown Pelican (Pelecanus occidentalis) 10 gregarious; flying offshore, ZO; 3 LP

Ardeidae

Great Egret (Ardea alba) 2 in canal, ZO

Snowy Egret (Egretta thula) 4 gregarious in canal, foraging for shrimp with WHIB, ZO (photo); 6 LP

Tricolored Heron (Egretta tricolor) 4 (some in alt. plmg.) wading in shallowsLP; 1 TR (photo)

Tricolored Heron (Egretta tricolor) Troncones, Guerrero MX 8 April 2018

Reddish Egret (Egretta rufescens) 1 flying low over lagoon, LP

Reddish Egret (Egreta rufescens) Laguna de Potosi, Guerrero MX 5 April 2018

Green Heron (Butorides virescens) 1 CL;1 TR; 1 ZO; 5 LP

Yellow-crowned Night Heron (Nyctanassa violacea) 4 loosely gregarious, perched on snags, CL (photo); 4 walking around edge of mangrove, TR

Yellow-crowned Night Heron (Nyctanassa violacea) Carizzo Lagoon RDP, Guerrero MX 3 April 2018

Black-crowned Night Heron (Nycticorax nycticorax) 2 LP

Threskiornithidae

White Ibis (Eudocimus albus) 3 gregarious; foraging on shrimp with SNEG in canal, ZO

White Ibis (Eudocimus albus)- center and Snowy Egret (Egretta garzetta) (l,r) Zihuatanejo, Guerrero MX 31 March 2018

White-faced Ibis (Plegadis chihi) 1 walking on shore, CL

White-faced Ibis (Plegadis chihi) Carizzo Lagoon, RDP Guerrero MX 3 April 2018

CATHARTIFORMES

Cathartidae

Black Vulture (Coragyps atratus) 2 CL

Turkey Vulture (Cathartes aura) ubiquitous; circling above towns and farms

ACCIPITRIFORMES

Pandionidae

Osprey (Pandion haliaetus) 1 LP

Accipitridae

Common Black Hawk (Buteogallus anthracinus) 1 PT

Roadside Hawk (Rupornis magnirostris) 1 vocal TR (photo); 1 RP

Roadside Hawk (Rupornis magnirostris) Troncones, Guerrero MX 8 April 2018

STRIGIFORMES

Strigidae

Ferruginous Pygmy Owl (Glaucidium brasilianum) 1 approachable to within about 20 ft., ZO (photo)

Ferruginous Pygmy Owl (Glaucidium brasilianum) Zihuatanejo, Guerrero MX 6 April 2018

TROGONIFORMES

Trogonidae

Citreoline Trogon (Trogon citreolus) 1 vocal, fairly tame and approachable, PT (photo); 1 ZO; 1 RP

Citreoline Trogon (Trogon citreolus) Troncones, Guerrero MX 1 April 2018

CORACIIFORMES

Motmotidae

Russet-crowned Motmot (Momotus mexicanus) 1 flew from hillside thorn scub over roadway and into a tall garden tree, ZO

Alcedinidae

Green Kingfisher (Chloroceryle americana) 2 perched above estuary on beach, TR (photo)

Green Kingfisher (Cholorceryle americana) Troncones, Guerrero MX 6 April 2018

PICIFORMES

Picidae

Golden-cheeked Woodpecker (Melanerpes chrysogenys) 2 usually in large trees, PT; 2 TR (photo); 3 ZO; 1 RP

Golden-cheeked Woodpecker (Melanerpes chrysogenys) Troncones, Guerrero MX 1 April 2018

PSITTACIFORMES

Psittacidae

Orange-fronted Parakeet (Eupsittula canicularis) 4 gregarious, vocal; foraging on dried fruits and flower parts in deciduous tree, PT (photo)

Orange-fronted Parakeet (Eupsittula canicularis) Troncones, Guerrero MX 1 April 2018

White-fronted Parrot (Amazona albifrons) 2 a pair in the leafless canopy of a deciduous tree, PT

White-fronted Parrot (Amazona albifrons) Troncones, Guerrero MX 1 April 2018

Yellow-headed Parrot (Amazona oratrix) 1 (clipped middle primary?) vocal perched in canopy; flying around hilltop thorn scrub, OR (photo)

Yellow-headed Parrot (Amazona oratrix) Old Road Zihuatanejo-Ixtapa, Guerrero MX 2 April 2018

PASSERIFORMES

Furnariidae

Ivory-billed Woodcreeper (Xiphorhynchus flavigaster) 1 low on tree trunk in brushy ravine, PT

Tyrannidae

Elaenia sp. 1 OR

Gray Flycatcher (Empidonax wrightii) OR (photo)

Gray Flycatcher (Empidonax wrightii) Old Road Zihuatanejo-Ixtapa, Guerrero, MX 2 April 2018

Pacific-slope Flycatcher (Empidonax difficilis) PT

Pacific-slope Flycatcher (Empidonax difficilis) Troncones, Guerrero MX 1 April 2018

Brown-crested Flycatcher (Myiarchus tyrannulus) 2 PT (photo); 1 OR

Brown-crested Flycatcher (Myiarchus tyrannulus) Troncones, Guerrero MX 1 April 2018

Great Kiskadee (Pitangus sulphuratus) 1 vocal on exposed perches > 10 ft. agl. ZO; 1 edge of mangrove LP (photo)

Great Kiskadee (Pitangus sulphuratus) Laguna de Potosi, Guerrero MX 5 April 2018

Social Flycatcher (Myiozetetes similis) 2 a pair foraging on berries (Rhamnus sp.)ZO; 2 LP

Social Flycatcher (Myiozetes similis) Zihatanejo, Guerrero MX 31 March 2018

Tropical Kingbird (Tyrannus melancholicus) ubiquitous; a vocal pair in close proximity, ZO (photo)

Tropical Kingbird (Tyrannus melancholicus) Zihuatanejo, Guerrero MX 31 March 2018

Tityridae

Rose-throated Becard (Pachyramphus aglaiae) (imm, ad) 1 PT; 1 CT; 1 OR (photo)

Rose-throated Becard (Pachyramphus aglaiae) immature Old Road Zihuatanejo-Ixtapa, Guerrero MX 2 April 2018

Vireonidae

Bell's Vireo (Vireo bellii) 1 vocal; middle level in thorn scrub trees TR (photo)

Bell's Vireo (Vireo bellii) Troncones, Guerrero MX 8 April 2018

Warbling Vireo (Vireo gilvus) 4 subcanopy of ornamental ZO, 1 OR, 2 TR (photo)

Warbling Vireo (Vireo gilvus) Troncones, Guerrero MX 7 April 2018

Corvidae

White-throated Magpie Jay (Calocitta formosa) vocal, gregarious; vigilant and wary 2 OR; 3 RP(Photo)

White-throated Magpie Jay (Calocitta formosa) Refugio de Potosi, Guerrero MX 3 April 2018

San Blas Jay (Cyanocorax sanblasianus) 3-4 vocal, wary; moving quickly through thorn scrub and subcanopy of large trees, PT (photo)

San Blas Jay (Cyanocorax sanblasianus) Troncones, Guerrero MX 1 April 2018

Hirundinidae

Gray-breasted Martin (Progne chalybea) 5 often in small flocks flying over and sometimes landing on buildings in town ZO (photo)

Gray-breasted Martin (Progne chalybea) Zihuatanejo, Guerrero MX 6 April 2018

Mangrove Swallow (Tachycineta albilinea) 4 flying low over lagoon, ZO

Northern Rough-winged Swallow (Stelgidopteryx serripennis) 2 TR

Barn Swallow (Hirundo rustica) 1 flying low, back and forth over the beach, MB

Troglodytidae

Rufous-naped Wren (Campylorhynchos rufinucha) 4 gregarious; foraging on ground, OR

Rufous-naped Wren (Campylorhynchos rufinucha) Old Road Zihuatanejo-Ixtapa, Guerrero MX 2 April 2018

Happy Wren (Pheugopedius felix) 2 vocal;low to middle level of thorn scrub OR (photo)

Happy Wren (Pheugopedius felix) Old Road Zihuatanejo-Ixtapa, Guerrero MX 2 April 2018

White-bellied Wren (Uropsila leucogastra) 1 staying within 1-2 ft. agl in undergrowth, PT (photo)

White-bellied Wren (Uropsila leucogastra) 1 Troncones, Guerrero MX 1 April 2018

Polioptilidae

Blue-gray Gnatcatcher (Poilioptila caerulea) 2 active in subcanopy of thorn forest, OR; TR (photo)

Blue-gray Gnatcatcher (Polioptila caerulea) Troncones, Guerrero MX 7 April 2018

Turdidae

Rufous-backed Robin (Turdus rufopalliatus) 10 often in and beneath fruiting trees with orioles, ZO (photo)

Rufous-backed Robin (Turdus rufopalliatus) Zihuatanejo, Guerrero MX 31 March 2018

Passeridae

House Sparrow (Passer domesticus) 2 ZO

Passerellidae

Olive Sparrow (Arremonops rufivirgatus) 2 gregarious; a pair foraging in brush piles and on ground, OR (photo)

Olive Sparrow (Arremonops rufivirgatus) Old Road Zihuatanejo-Ixtapa, Guerrero MX 2 April 2018

Stripe-headed Sparrow (Peucaea ruficauda) 3 an individual in thorn scrub and a vocal pair at edge of ruderal field TR (photo)

Stripe-headed Sparrow (Peucaea ruficauda) Troncones, Guerrero MX 8 April 2018

Icteridae

Yellow-winged Cacique (Cassiculus melanicterus) 4 nesting; active in a variety of garden trees in town ZO (photo)

Yellow-winged Cacique (Cassiculus melanicterus) Zihuatanejo, Guerrero MX 31 March 2018

Black-vented Oriole (Icterus wagleri) 2 (ad, imm) pairs and trios of adults and immatures in thorn scrub trees, RP (photo)

Black-vented Oriole (Icterus wagleri) Refugio de Potosi, Guerrero MX 3 April 2018

Orchard Oriole (Icterus spurius) 8 gregarious in a variety of ornamental vegetation, ZO (photo)

Orchard Oriole (Icterus spurius) male Zihuatanejo, Guerrero MX 31 March 2018

Streak-backed Oriole (Icterus pustulatus) 4 gregarious; active in fruiting shrubs and trees ZO (photo)

Streak-backed Oriole (Icterus pustulatus) 4 Zihuatanejo, Guerrero MX 6 April 2018

Bronzed Cowbird (Molothrus aeneus) 20 gregarious; males displaying to females that outnumbered males about 20:1, ZO (photo)

Bronzed Cowbird (Molothrus aeneus) male Zihuatanejo, Guerrero MX 31 March 2018

Great-tailed Grackle (Quiscalus mexicanus) 12 (m,f) vocal, gregarious, foraging on ground, ZO (photo)

Great-tailed Grackle (Quiscalus mexicanus ) male Zihuatanejo, Guerrero MX 31 March 2018

Parulidae

Northern Waterthrush (Parkesia noveboracensis) 1 TR

Black-and-White Warbler (Mniotilta varia) 1 RP

MacGillivray's Warbler (Geothlypis tolmei) 1 RP

Tropical Parula (Setophaga pitiayumi) 1 BL (photo)

Tropical Parula (Setophaga pitiayumi) Boca de Lagunillas, Troncones Guerrero MX 1 April 2018

Yellow Warbler (Setophaga petechia) 2 often in msf with orioles ZO, 2 RP, 2 LP

Yellow Warbler (Setophaga petechia) male Zihuatanejo, Guerrero MX 31 March 2018

Fringillidae

Scrub Euphonia (Euphonia affinis) 2 TR (photo)

Scrub Euphonia (Euphonia affinis) male Troncones, Guerrero MX 7 April 2018

Lesser Goldfinch (Spinus psaltria) 2 TR

Cardinalidae

Northern Cardinal (Cardinalis cardinalis) 1 PT

Yellow Grosbeak (Pheucticus chrysopeplus) 1 TR

Blue Bunting (Cyanocompsa parellina) 1 drinking at the pond in the afternoon, RP (photo)

Blue Bunting (Cyanocompsa parellina) female Refugio de Potosi, Guerrero MX 3 April 2018

Orange-breasted Bunting (Passerina leclancherii) 2 OR; 3 RP; 2 TR (photo)

Orange-breasted Bunting (Passerina leclancherii) Troncones, Guerrero MX 6 April 2018

Painted Bunting (Passerina ciris) 1 PT (photo) ; 2 (m,f) drinking at pond RP

Painted Bunting (Passerina ciris) male Troncones, Guerrero MX 1 April 2018

Thraupidae

Blue-gray Tanager (Thraupis episcopus) 1 foraging on Rhamnus sp. berries, ZO (photo)

Blue-gray Tanager (Thraupis episcopus) Zihuatanejo, Guerrero MX 31 March 2018

Blue-black Grassquit (Volatinia jacarina) 2 ( imm f) in ruderal roadside field, TR (photo)

Blue-black Grassquit (Volatinia jacarina) female/immature Troncones, Guerrero MX 8 April 2018

White-collared Seedeater (Sporophila torqueola) 3 gregarious in gardens and ruderal fields ZO; 2 TR (photo)

White-collared Seedeater (Sporophila torqueola) male Troncones, Guerrero MX 6 April 2018