| 7/18/99 | Magnificent Frigatebird | Puerto Morelos, YU |
| 7/18/99 | Ruddy Ground-Dove | Puerto Morelos, YU |
| 7/18/99 | Great Kiskadee | Puerto Morelos, YU |
| 7/18/99 | Tropical Mockingbird | Puerto Morelos, YU |
| 7/18/99 | Great Kiskadee | YU |
| 7/18/99 | Brown-crested Flycatcher | Tulum, YU |
| 7/18/99 | Turkey Vulture | Tulum, YU |
| 7/18/99 | Roadside Hawk | Tulum, YU |
| 7/18/99 | Great-tailed Grackle | Tulum, YU |
| 7/18/99 | Northern Rough-winged Swallow | Tulum, YU |
| 7/18/99 | Orange Oriole | Tulum, YU |
| 7/18/99 | Yellow-tailed Oriole | Tulum, YU |
| 7/18/99 | Orange Oriole | Tulum, YU |
| 7/18/99 | Bronzed Cowbird | Tulum, YU |
| 7/18/99 | Tropical Kingbird | Tulum, YU |
| 7/18/99 | Altamira Oriole | Tulum, YU |
| 7/18/99 | White-winged Dove | Tulum, YU |
| 7/18/99 | Social Flycatcher | YU |
| 7/18/99 | Clay-colored Robin | YU |
| 7/18/99 | White-collared Seedeater | Coba, YU |
| 7/18/99 | Black Vulture | Coba, YU |
| 7/18/99 | Sulphur-bellied Flycatcher | Coba, YU |
| 7/18/99 | Brown Pelican | YU |
| 7/18/99 | Neotropic Cormorant | Coba, YU |
| 7/18/99 | Anhinga | Coba, YU |
| 7/18/99 | Ruddy Crake | Coba, YU |
| 7/18/99 | Great Blue Heron | Coba, YU |
| 7/18/99 | Yucatan Vireo | Coba, YU |
| 7/18/99 | Black-headed Saltator | Coba, YU |
| 7/18/99 | Black-headed Trogon | Coba, YU |
| 7/18/99 | Vaux's Swift | Coba, YU |
| 7/18/99 | Boat-billed Flycatcher | Coba, YU |
| 7/18/99 | Masked Tityra | Coba, YU |
| 7/18/99 | Rock Dove | Coba, YU |
| 7/18/99 | Purple Gallinule | Coba, YU |
| 7/19/99 | Red-vented Woodpecker | Coba, YU |
| 7/19/99 | Scrub Euphonia | Coba, YU |
| 7/19/99 | Yucatan Flycatcher | Coba, YU |
| 7/19/99 | Great Blue Heron | Coba, YU |
| 7/19/99 | Clay-colored Robin | Coba, YU |
| 7/19/99 | Altamira Oriole | Coba, YU |
| 7/19/99 | Ruddy Ground-Dove | Coba, YU |
| 7/19/99 | Black-headed Saltator | Coba, YU |
| 7/19/99 | Great-tailed Grackle | Coba, YU |
| 7/19/99 | Yucatan Vireo | Coba, YU |
| 7/19/99 | Gray-breasted Martin | Coba, YU |
| 7/19/99 | Melodious Blackbird | Coba, YU |
| 7/19/99 | Greenish Elaenia | Coba, YU |
| 7/19/99 | Groove-billed Ani | Coba, YU |
| 7/19/99 | Yellow-green Vireo | Coba, YU |
| 7/19/99 | Green-backed Sparrow | Coba, YU |
| 7/19/99 | Black-headed Trogon | Coba, YU |
| 7/19/99 | Masked Tityra | Coba, YU |
| 7/19/99 | Piratic Flycatcher | Coba, YU |
| 7/19/99 | Brown-crested Flycatcher | Coba, YU |
| 7/19/99 | Ivory-billed Woodcreeper | Coba, YU |
| 7/19/99 | Olivaceous Woodcreeper | Coba, YU |
| 7/19/99 | Turkey Vulture | Coba, YU |
| 7/19/99 | Green-breasted Mango | Coba, YU |
| 7/19/99 | Vaux's Swift | Coba, YU |
| 7/19/99 | Yellow-throated Warbler | Muyil, YU |
| 7/19/99 | Golden-fronted Woodpecker | Muyil, YU |
| 7/19/99 | Tropical Pewee | Muyil, YU |
| 7/19/99 | Caribbean Elaenia | Muyil, YU |
| 7/19/99 | Spotted Sandpiper | Muyil, YU |
| 7/19/99 | Barred Antshrike | Felipe Carrillo, YU |
| 7/19/99 | Buff-bellied Hummingbird | Felipe Carrillo, YU |
| 7/19/99 | Brown Jay | Felipe Carrillo, YU |
| 7/20/99 | Wedge-tailed Sabrewing | Felipe Carrillo, YU |
| 7/20/99 | Northern Cardinal | Felipe Carrillo, YU |
| 7/20/99 | Altamira Oriole | Felipe Carrillo, YU |
| 7/20/99 | Red-vented Woodpecker | Felipe Carrillo, YU |
| 7/20/99 | Squirrel Cuckoo | Felipe Carrillo, YU |
| 7/20/99 | Roadside Hawk | Felipe Carrillo, YU |
| 7/20/99 | Golden-fronted Woodpecker | Felipe Carrillo, YU |
| 7/20/99 | Scrub Euphonia | Felipe Carrillo, YU |
| 7/20/99 | Buff-bellied Hummingbird | Felipe Carrillo, YU |
| 7/20/99 | Red-vented Woodpecker | Felipe Carrillo, YU |
| 7/20/99 | Plain Chachalaca | Felipe Carrillo, YU |
| 7/20/99 | Groove-billed Ani | Felipe Carrillo, YU |
| 7/20/99 | Vaux's Swift | Felipe Carrillo, YU |
| 7/20/99 | Social Flycatcher | Felipe Carrillo, YU |
| 7/20/99 | Altamira Oriole | Felipe Carrillo, YU |
| 7/20/99 | Turkey Vulture | Felipe Carrillo, YU |
| 7/20/99 | Black-crowned Tityra | Felipe Carrillo, YU |
| 7/20/99 | Ladder-backed Woodpecker | Felipe Carrillo, YU |
| 7/20/99 | White-collared Seedeater | Felipe Carrillo, YU |
| 7/20/99 | Black-headed Saltator | Felipe Carrillo, YU |
| 7/20/99 | Cattle Egret | Felipe Carrillo, YU |
| 7/20/99 | Great Egret | Felipe Carrillo, YU |
| 7/20/99 | Black Vulture | Felipe Carrillo, YU |
| 7/20/99 | Turquoise-browed Motmot | Felipe Carrillo, YU |
| 7/21/99 | Turquoise-browed Motmot | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Cave Swallow | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | White-winged Dove | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Yellow-faced Grassquit | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Great-tailed Grackle | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Clay-colored Robin | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Yucatan Flycatcher | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Ruddy Ground-Dove | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Tropical Gnatcatcher | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Green-backed Sparrow | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Vaux's Swift | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Wedge-tailed Sabrewing | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Gray-breasted Martin | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Turkey Vulture | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Brown-crested Flycatcher | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Melodious Blackbird | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Yellow-green Vireo | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Altamira Oriole | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Golden-fronted Woodpecker | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Rufous-browed Peppershrike | Uxmal, Felipe Carrillo, YU |
| 7/21/99 | Northern Cardinal | Felipe Carrillo, YU |
| 7/21/99 | Western Sandpiper | Progreso, YU |
| 7/21/99 | Least Sandpiper | Progreso, YU |
| 7/21/99 | Black-necked Stilt | Progreso, YU |
| 7/21/99 | Brown Pelican | Progreso, YU |
| 7/21/99 | Laughing Gull | Progreso, YU |
| 7/21/99 | Snowy Egret | Progreso, YU |
| 7/21/99 | Least Tern | Progreso, YU |
| 7/21/99 | Tricolored Heron | Progreso, YU |
| 7/21/99 | Royal Tern | Progreso, YU |
| 7/21/99 | Magnificent Frigatebird | Progreso, YU |
| 7/21/99 | Mangrove Swallow | Progreso, YU |
| 7/21/99 | Rock Dove | Progreso, YU |
| 7/21/99 | Tropical Mockingbird | Progreso, YU |
| 7/21/99 | Greater Flamingo | Progreso, YU |
| 7/21/99 | Progreso, YU | |
| 7/21/99 | Greater Yellowlegs | Progreso, YU |
| 7/22/99 | Wilson's Plover | Progreso, YU |
| 7/22/99 | Tricolored Heron | Progreso, YU |
| 7/22/99 | Black-necked Stilt | Progreso, YU |
| 7/22/99 | Ruddy Ground-Dove | Progreso, YU |
| 7/22/99 | Great-tailed Grackle | Progreso, YU |
| 7/22/99 | Laughing Gull | Progreso, YU |
| 7/22/99 | Great Egret | Progreso, YU |
| 7/22/99 | Snowy Egret | Progreso, YU |
| 7/22/99 | Neotropic Cormorant | Progreso, YU |
| 7/22/99 | Herring Gull | Progreso, YU |
| 7/22/99 | Least Tern | Progreso, YU |
| 7/22/99 | Brown Pelican | Progreso, YU |
| 7/22/99 | Whimbrel | Progreso, YU |
| 7/22/99 | Black Skimmer | Progreso, YU |
| 7/22/99 | Great Blue Heron | Progreso, YU |
| 7/22/99 | Royal Tern | Progreso, YU |
| 7/22/99 | Turkey Vulture | Progreso, YU |
| 7/22/99 | Blue-crowned Motmot | YU |
| 7/22/99 | Altamira Oriole | YU |
| 7/22/99 | Great Kiskadee | YU |
| 7/22/99 | Clay-colored Robin | YU |
| 7/22/99 | Green Parakeet | YU |
| 7/22/99 | Groove-billed Ani | YU |
| 7/22/99 | Yucatan Flycatcher | YU |
| 7/22/99 | White-winged Dove | YU |
| 7/22/99 | Melodious Blackbird | YU |
| 7/22/99 | Plain Chachalaca | YU |
| 7/22/99 | Golden-fronted Woodpecker | YU |
| 7/22/99 | Scrub Euphonia | YU |
| 7/22/99 | Red-billed Pigeon | YU |
| 7/22/99 | Grayish Saltator | YU |
| 7/22/99 | YU | |
| 7/22/99 | Carolina Wren | Chichen Itza, YU |
| 7/22/99 | Yucatan Jay | Chichen Itza, YU |
| 7/22/99 | Red-vented Woodpecker | Chichen Itza, YU |
| 7/22/99 | Social Flycatcher | Chichen Itza, YU |
| 7/22/99 | Tropical Mockingbird | Chichen Itza, YU |
| 7/22/99 | Rock Dove | Chichen Itza, YU |
| 7/22/99 | Black Vulture | Chichen Itza, YU |
| 7/22/99 | Vaux's Swift | Chichen Itza, YU |
| 7/22/99 | Masked Tityra | Chichen Itza, YU |
| 7/22/99 | Collared Aracari | Chichen Itza, YU |
| 7/22/99 | Lesser Goldfinch | Chichen Itza, YU |
| 7/23/99 | Collared Aracari | Chichen Itza, YU |
| 7/23/99 | Yellow-green Vireo | Chichen Itza, YU |
| 7/23/99 | Great Kiskadee | Chichen Itza, YU |
| 7/23/99 | Plain Chachalaca | Chichen Itza, YU |
| 7/23/99 | Great-tailed Grackle | Chichen Itza, YU |
| 7/23/99 | Vaux's Swift | Chichen Itza, YU |
| 7/23/99 | Golden-fronted Woodpecker | Chichen Itza, YU |
| 7/23/99 | Ruddy Ground-Dove | Chichen Itza, YU |
| 7/23/99 | Clay-colored Robin | Chichen Itza, YU |
| 7/23/99 | Altamira Oriole | Chichen Itza, YU |
| 7/23/99 | Social Flycatcher | Chichen Itza, YU |
| 7/23/99 | Masked Tityra | Chichen Itza, YU |
| 7/23/99 | Blue-crowned Motmot | Chichen Itza, YU |
| 7/23/99 | Turkey Vulture | Chichen Itza, YU |
| 7/23/99 | Blue-gray Gnatcatcher | Chichen Itza, YU |
| 7/23/99 | Groove-billed Ani | Chichen Itza, YU |
| 7/23/99 | Cave Swallow | Chichen Itza, YU |
| 7/23/99 | Yellow-faced Grassquit | Chichen Itza, YU |
| 7/23/99 | Magnificent Frigatebird | Puerto Morelos, Puerto Morelos, YU |
| 7/23/99 | Brown Pelican | Puerto Morelos, YU |
| 7/23/99 | Royal Tern | Puerto Morelos, YU |
| 7/23/99 | Black Vulture | Puerto Morelos, YU |