Least Grebe - a couple at the San Blas Sewage Ponds

Magnificent Frigatebird - abundant everywhere overhead on the coast

Blue-footed Booby - a few on Virgin Rock, also seen there from shore at Peso Island

Brown Booby - a couple on Virgin Rock

Neotropic Cormorant - common on bodies of water at San Blas and Mexcaltitan

Anhinga - common along the river at San Blas and Mexcaltitan

Brown Pelican - common on the beach in coastal areas

American White Pelican - 2 overhead at San Blas and a few at Mexcaltitan

Black-bellied Whistling-Duck - San Blas Sewage Ponds, upriver, and Mexcaltitan

Muscovy Duck - 1 flyover on the evening boat trip in San Blas

Northern Pintail - flyby birds on the evening boat trip in San Blas

Blue-winged Teal - individuals seen on boat trips in San Blas and Mexcaltitan

Cattle Egret - several locations, always with cows

Tricolored Heron - common on bodies of water at San Blas and Mexcaltitan

Little Blue Heron - common on bodies of water at San Blas and Mexcaltitan

Snowy Egret - common on bodies of water everywhere

Bare-throated Tiger-Heron - individuals on all boat trips in San Blas and Mexcaltitan; mostly adults

Great Blue Heron - common on bodies of water everywhere

Great Egret - common on bodies of water everywhere

Green Heron - common on the river at San Blas, 1 at Mexcaltitan

Yellow-crowned Night-Heron - fairly common on the river at San Blas and Mexcaltitan

Black-crowned Night-Heron - fairly common on the river at San Blas and Mexcaltitan

Boat-billed Heron - Seen on both boat trips from San Blas with Chencho

Limpkin - about 8 birds at Mexcaltitan

White Ibis - common on the river at San Blas and Mexcaltitan

White-faced Ibis - common on bodies of water at San Blas and Mexcaltitan

Roseate Spoonbill - seen several places around San Blas and Mexcaltitan

Wood Stork - seen several places around San Blas and Mexcaltitan

Black Vulture - abundant everywhere

Turkey Vulture - abundant everywhere

Osprey - common on the river at San Blas and Mexcaltitan

White-tailed Kite - 1 on the morning boat trip in San Blas

Snail Kite - 10 on the morning boat trip in San Blas, 2 near Chacalilla

Sharp-shinned Hawk - 1 along the Rio Cuale in Puerto Vallarta

Cooper's Hawk - 1 at Cerro de San Juan

Crane Hawk - 1 at Mexcaltitan

Common Black-Hawk - fairly common near water at San Blas, common at Mexcaltitan

Great Black-Hawk - 1 at San Blas along the river, a few at Mexcaltitan

Gray Hawk - fairly common in lowland areas

Short-tailed Hawk - 1 at the San Blas Sewage Ponds and 1 at La Bajada

Zone-tailed Hawk - 1 along the road to the crocodile farms

Crested Caracara - 1 at Mexcaltitan

Rufous-bellied Chachalaca - 1 on Peso Island, 1 at the crocodile farms

Collared Forest-Falcon - 1 flyby along the road to the crocodile farms

American Kestrel - fairly common in lowland areas

Common Moorhen - seen on the morning boat trip at San Blas

American Coot - many places where there was water

Northern Jacana - several places around San Blas

Snowy Plover - small group on the beach on Peso Island

Greater Yellowlegs - seen on boat trips at San Blas and Mexcaltitan

Lesser Yellowlegs - San Blas Sewage Ponds, morning boat trip at San Blas

Solitary Sandpiper - 1 on the road to the crocodile farms near San Blas

Whimbrel - fairly common on the beach at San Blas

Spotted Sandpiper - fairly common around San Blas

Willet - common at San Blas and Mexcaltitan

Long-billed Curlew - 1 at Mexcaltitan

Sanderling - small flocks on the beach at Peso Island

Dowitcher sp. - small numbers at San Blas and Mexcaltitan

American Oystercatcher - Peso Island and Mexcaltitan

Black-necked Stilt - fairly common around San Blas and Mexcaltitan

American Avocet - ponds on the entrance road to San Blas, roadside on the way to Mexcaltitan

Heermann's Gull - fairly common on the beach at San Blas

Ring-billed Gull - a few at San Blas and Mexcaltitan

California Gull - a couple at Peso Island

Laughing Gull - fairly common at Mexcaltitan

Caspian Tern - common at San Blas and Mexcaltitan

Royal Tern - flocks on the beach at Peso Island

Least Tern - 1 at Peso Island

Rock Pigeon - abundant in all urban areas

Red-billed Pigeon - seen on boat trips at San Blas and Mexcaltitan

Common Ground-Dove - a couple near Chacalilla

Mourning Dove - Chacalilla, Peso Island

White-winged Dove - fairly common in lowland areas

Inca Dove - fairly common in lowland areas

Orange-fronted Parakeet - a couple flocks seen along the Rio Cuale in Puerto Vallarta

Mexican Parrotlet - a couple flocks seen at La Bajada

Mangrove Cuckoo - 2 different birds on the evening boat trip in San Blas

Groove-billed Ani - fairly common in lowland areas and on river boat trips

Northern Potoo - several birds on the evening boat trip with Chencho, both roosting and after dark

Pauraque - 1 probable bird on the evening boat trip with Chencho

Berylline Hummingbird - fairly common at Cerro de San Juan

White-eared Hummingbird - common at Cerro de San Juan

Cinnamon Hummingbird - several at La Bajada

Violet-crowned Hummingbird - 1 at La Bajada

Plain-capped Starthroat - fairly common at La Bajada

Russet-crowned Motmot - 1 at Cerro de San Juan

Trogon sp. - 1 silhouetted in the distance at Cerro de San Juan

Belted Kingfisher - common along bodies of water everywhere

Green Kingfisher - seen along the Rio Cuale in Puerto Vallarta and common on boat trips in San Blas

Acorn Woodpecker - a couple at Cerro de San Juan

Golden-cheeked Woodpecker - fairly common in forested areas

Gila Woodpecker - 1 at Laguna de Santa Maria de Oro near Tepic

Lineated Woodpecker - several locations in San Blas and La Bajada

Ladder-backed Woodpecker - 1 at Cerro de San Juan and 1 at Chacalilla

Yellow-bellied Sapsucker - 1 at Cerro de San Juan

Black Phoebe - 2 along the Rio Cuale near Puerto Vallarta

Vermilion Flycatcher - fairly common in open areas in lowlands

Greater Pewee - fairly common in forested and open areas

Tufted Flycatcher - individuals seen at Peso Island, La Bajada, and Cerro de San Juan

"Western" Flycatcher - a few at La Bajada

Buff-breasted Flycatcher - 1 at Cerro de San Juan

Dusky-capped Flycatcher - Rio Cuale, La Bajada, Cerro de San Juan

Tropical Kingbird - abundant everywhere

Thick-billed Kingbird - seen in many places

Social Flycatcher - seen in many places in lowland areas

Great Kiskadee - abundant everywhere

Boat-billed Flycatcher - 1 at La Bajada

Rose-throated Becard - 1 female along the Rio Cuale near Puerto Vallarta

Masked Tityra - fairly common in lowland areas

San Blas Jay - seen along the Rio Cuale and on the evening boat trip with Chencho in San Blas

Green Jay - a couple birds at Cerro de San Juan

Sinaloa Crow - common in urban areas everywhere except not seen in Puerto Vallarta

Black-capped Vireo - 1 at La Bajada

Golden Vireo - 1 at La Bajada

Plumbeous Vireo - 1 along the Rio Cuale in Puerto Vallarta

Warbling Vireo - fairly common in mixed species flocks in forested areas

Rufous-backed Robin - 1 on the evening boat trip in San Blas

Swainson's Thrush - 1 at La Bajada

Northern Mockingbird - seen on Peso Island and near the San Blas Sewage Ponds

Sinaloa Wren - 1 seen at La Bajada

Blue-gray Gnatcatcher - abundant in forested areas everywhere

Ruby-crowned Kinglet - 1 at Cerro de San Juan

Gray-breasted Martin - roosting on buildings at Mexcaltitan

Mangrove Swallow - seen at San Blas and Mexcaltitan

Northern Rough-winged Swallow - seen in various places in lowland areas

Barn Swallow - a couple at Mexcaltitan

Orange-crowned Warbler - a few seen here and there in lowland areas

Grace's Warbler - 1 at Cerro de San Juan

Nashville Warbler - fairly common in forested areas

Lucy's Warbler - 1 at Peso Island and 1 at Chacalilla

Mangrove [Yellow] Warbler - seen on both boat trips in San Blas

Yellow Warbler - fairly common in lowland areas

Hermit Warbler - 1 at Cerro de San Juan

Townsend's Warbler - common at Cerro de San Juan

Black-throated Gray Warbler - common in forested areas

Black-and-white Warbler - common in forested areas

Yellow-rumped Warbler - a few places, common in La Loma park in Tepic

Rufous-capped Warbler - seen on both visits to Cerro de San Juan

Kentucky Warbler - 1 at La Bajada was a rare bird in the area

Northern Waterthrush - seen on both boat trips from San Blas

MacGillivray's Warbler - seen on Peso Island and Cerro de San Juan

Common Yellowthroat - a few on the road to Chacalilla

Wilson's Warbler - common in forested areas everywhere

American Redstart - seen on both boat trips from San Blas

Painted Redstart - fairly common at Cerro de San Juan

Slate-throated Redstart - 1 at Cerro de San Juan

Yellow-breasted Chat - 1 near Chacalilla

Summer Tanager - La Laguna de Santa Maria de Oro and La Loma park in Tepic

Hepatic Tanager - 1 male at Cerro de San Juan

Western Tanager - several places, including one in town in Puerto Vallarta

Red-headed Tanager - 1 male and 1 female at Cerro de San Juan

Scrub Euphonia - 1 along the Rio Cuale, 1 at Laguna de Santa Maria de Oro

Grayish Saltator - 1 at La Bajada

Black-headed Grosbeak - uncommon in forested areas

Blue Grosbeak - 1 male and 1 female at Chacalilla

Varied Bunting - 1 male at Cerro de San Juan

Painted Bunting - small groups on Peso Island and near Chacalilla

Rusty-crowned Ground-Sparrow - 1 at Cerro de San Juan and 1 at La Laguna de Santa Maria de Oro

Lincoln's Sparrow - Peso Island, Chacalilla, Cerro de San Juan

Stripe-headed Sparrow - a small group at Laguna de Santa Maria de Oro

Savannah Sparrow - a couple flocks were along the road to Chacalilla

Grasshopper Sparrow - 2 birds along the road to Chacalilla

Red-winged Blackbird - a couple seen at Mexcaltitan

Yellow-winged Cacique - fairly common in lowland areas

Streak-backed Oriole - seen in a couple places

Hooded Oriole - seen in a couple places

Orchard Oriole - 1 in La Loma park in Tepic

Great-tailed Grackle - abundant everywhere

Brown-headed Cowbird - 1 flock near the San Blas Sewage Ponds

Bronzed Cowbird - flocks in Chacalilla and Tepic

Lesser Goldfinch - Cerro de San Juan and near the San Blas Sewage Ponds

Black-headed Siskin - a few in a flock at Cerro de San Juan

House Sparrow - abundant in urban areas

Total Trip List: 173 species

Complete trip report with photos