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Terlingua—Study Butte WTP (restricted access)

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Bird List

Updated ~3 seconds ago
125 All Years 73 This Year 2024 51 This Month May 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (125)

  1. Blue-winged Teal Spatula discors
    # Count: 2
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  2. Cinnamon Teal Spatula cyanoptera
    # Count: 2
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  3. Northern Shoveler Spatula clypeata
    # Count: 1
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  4. Mexican Duck Anas diazi
    # Count: 1
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  5. Green-winged Teal Anas crecca
    # Count: 1
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  6. Ruddy Duck Oxyura jamaicensis
    # Count: 2
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  7. Eared Grebe Podiceps nigricollis
    # Count: 1
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  8. American Coot Fulica americana
    # Count: 2
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  9. Wilson's Phalarope Phalaropus tricolor
    # Count: 4
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  10. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  11. Black Phoebe Sayornis nigricans
    # Count: 1
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  12. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Doug Fishman
    Location: Terlingua—Study Butte WTP (restricted access)
  13. Gadwall Mareca strepera
    # Count: 1
    Date:
    Observer: Camille christine
    Location: Terlingua—Study Butte WTP (restricted access)
  14. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Camille christine
    Location: Terlingua—Study Butte WTP (restricted access)
  15. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Camille christine
    Location: Terlingua—Study Butte WTP (restricted access)
  16. House Sparrow Passer domesticus
    # Count: 1
    Date:
    Observer: Camille christine
    Location: Terlingua—Study Butte WTP (restricted access)
  17. Brown-headed Cowbird Molothrus ater
    # Count: 1
    Date:
    Observer: Camille christine
    Location: Terlingua—Study Butte WTP (restricted access)
  18. Greater Roadrunner Geococcyx californianus
    # Count: 1
    Date:
    Observer: Jacob Ornelas
    Location: Terlingua—Study Butte WTP (restricted access)
  19. American Avocet Recurvirostra americana
    # Count: 1
    Date:
    Observer: Jacob Ornelas
    Location: Terlingua—Study Butte WTP (restricted access)
  20. Acorn Woodpecker Melanerpes formicivorus
    # Count: 3
    Date:
    Observer: Jacob Ornelas
    Location: Terlingua—Study Butte WTP (restricted access)
  21. Mexican Jay Aphelocoma wollweberi
    # Count: 3
    Date:
    Observer: Jacob Ornelas
    Location: Terlingua—Study Butte WTP (restricted access)
  22. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Jacob Ornelas
    Location: Terlingua—Study Butte WTP (restricted access)
  23. White-winged Dove Zenaida asiatica
    # Count: 2
    Date:
    Observer: Laura Crago
    Location: Terlingua—Study Butte WTP (restricted access)
  24. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: Laura Crago
    Location: Terlingua—Study Butte WTP (restricted access)
  25. Turkey Vulture Cathartes aura
    # Count: 21
    Date:
    Observer: Laura Crago
    Location: Terlingua—Study Butte WTP (restricted access)
  26. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Laura Crago
    Location: Terlingua—Study Butte WTP (restricted access)
  27. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 1
    Date:
    Observer: Laura Crago
    Location: Terlingua—Study Butte WTP (restricted access)
  28. Cactus Wren Campylorhynchus brunneicapillus
    # Count: 1
    Date:
    Observer: Laura Crago
    Location: Terlingua—Study Butte WTP (restricted access)
  29. Yellow-headed Blackbird Xanthocephalus xanthocephalus
    # Count: 3
    Date:
    Observer: Laura Crago
    Location: Terlingua—Study Butte WTP (restricted access)
  30. Great-tailed Grackle Quiscalus mexicanus
    # Count: 2
    Date:
    Observer: Laura Crago
    Location: Terlingua—Study Butte WTP (restricted access)
  31. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 3
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  32. Cave Swallow Petrochelidon fulva
    # Count: 1
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  33. European Starling Sturnus vulgaris
    # Count: 3
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  34. Clay-colored Sparrow Spizella pallida
    # Count: 1
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  35. Brewer's Sparrow Spizella breweri
    # Count: 2
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  36. Rock Pigeon Columba livia
    # Count: 2
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  37. Western Wood-Pewee Contopus sordidulus
    # Count: 2
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  38. Lesser Goldfinch Spinus psaltria
    # Count: 2
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  39. Chipping Sparrow Spizella passerina
    # Count: 4
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  40. Green-tailed Towhee Pipilo chlorurus
    # Count: 1
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  41. Yellow-rumped Warbler Setophaga coronata
    # Count: 3
    Date:
    Observer: Michael J Good
    Location: Terlingua—Study Butte WTP (restricted access)
  42. Western Cattle Egret Bubulcus ibis
    # Count: 1
    Date:
    Observer: Josh Engel
    Location: Terlingua—Study Butte WTP (restricted access)
  43. Western Kingbird Tyrannus verticalis
    # Count: 4
    Date:
    Observer: Josh Engel
    Location: Terlingua—Study Butte WTP (restricted access)
  44. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 1
    Date:
    Observer: Josh Engel
    Location: Terlingua—Study Butte WTP (restricted access)
  45. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 1
    Date:
    Observer: Josh Engel
    Location: Terlingua—Study Butte WTP (restricted access)
  46. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: David Mehlman
    Location: Terlingua—Study Butte WTP (restricted access)
  47. Willet Tringa semipalmata
    # Count: 25
    Date:
    Observer: David Mehlman
    Location: Terlingua—Study Butte WTP (restricted access)
  48. Say's Phoebe Sayornis saya
    # Count: 1
    Date:
    Observer: David Mehlman
    Location: Terlingua—Study Butte WTP (restricted access)
  49. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: David Mehlman
    Location: Terlingua—Study Butte WTP (restricted access)
  50. House Finch Haemorhous mexicanus
    # Count: 1
    Date:
    Observer: David Mehlman
    Location: Terlingua—Study Butte WTP (restricted access)
  51. Brewer's Blackbird Euphagus cyanocephalus
    # Count: 2
    Date:
    Observer: David Mehlman
    Location: Terlingua—Study Butte WTP (restricted access)
  52. Black-necked Stilt Himantopus mexicanus
    # Count: 1
    Date:
    Observer: Mark Korducki
    Location: Terlingua—Study Butte WTP (restricted access)
  53. Bank Swallow Riparia riparia
    # Count: 1
    Date:
    Observer: Mark Korducki
    Location: Terlingua—Study Butte WTP (restricted access)
  54. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Mark Korducki
    Location: Terlingua—Study Butte WTP (restricted access)
  55. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Mark Korducki
    Location: Terlingua—Study Butte WTP (restricted access)
  56. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Mark Korducki
    Location: Terlingua—Study Butte WTP (restricted access)
  57. Canada Goose Branta canadensis
    # Count: 1
    Date:
    Observer: Justin Bosler
    Location: Terlingua—Study Butte WTP (restricted access)
  58. Scaled Quail Callipepla squamata
    # Count: 3
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  59. White-throated Swift Aeronautes saxatalis
    # Count: 5
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  60. Black Vulture Coragyps atratus
    # Count: 2
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  61. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  62. Golden-fronted Woodpecker Melanerpes aurifrons
    # Count: 1
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  63. Vermilion Flycatcher Pyrocephalus rubinus
    # Count: 2
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  64. Ash-throated Flycatcher Myiarchus cinerascens
    # Count: 3
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  65. Bell's Vireo Vireo bellii
    # Count: 2
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  66. Verdin Auriparus flaviceps
    # Count: 1
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  67. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 2
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  68. Rock Wren Salpinctes obsoletus
    # Count: 1
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  69. Canyon Wren Catherpes mexicanus
    # Count: 1
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  70. Bewick's Wren Thryomanes bewickii
    # Count: 1
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  71. Black-throated Sparrow Amphispiza bilineata
    # Count: 6
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  72. Northern Cardinal Cardinalis cardinalis
    # Count: 1
    Date:
    Observer: Jesse Anderson
    Location: Terlingua—Study Butte WTP (restricted access)
  73. Loggerhead Shrike Lanius ludovicianus
    # Count: 1
    Date:
    Observer: Sasha Francis
    Location: Terlingua—Study Butte WTP (restricted access)
  74. Snowy Egret Egretta thula
    # Count: 1
    Date:
    Observer: Josh Lefever
    Location: Terlingua—Study Butte WTP (restricted access)
  75. Ring-necked Duck Aythya collaris
    # Count: 3
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  76. Bufflehead Bucephala albeola
    # Count: 1
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  77. Ring-billed Gull Larus delawarensis
    # Count: 2
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  78. Lesser Nighthawk Chordeiles acutipennis
    # Count: 1
    Date:
    Observer: Bruce Cramer
    Location: Terlingua—Study Butte WTP (restricted access)
  79. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  80. Common Nighthawk Chordeiles minor
    # Count: 5
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  81. Tree Swallow Tachycineta bicolor
    # Count: 1
    Date:
    Observer: Willie Sekula
    Location: Terlingua—Study Butte WTP (restricted access)
  82. American Wigeon Mareca americana
    # Count: 1
    Date:
    Observer: Willie Sekula
    Location: Terlingua—Study Butte WTP (restricted access)
  83. Barn Swallow Hirundo rustica
    # Count: 1
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)
  84. Swainson's Hawk Buteo swainsoni
    # Count: 1
    Date:
    Observer: Bill Asteriades
    Location: Terlingua—Study Butte WTP (restricted access)
  85. Pyrrhuloxia Cardinalis sinuatus
    # Count: 1
    Date:
    Observer: Bill Asteriades
    Location: Terlingua—Study Butte WTP (restricted access)
  86. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  87. Redhead Aythya americana
    # Count: X
    Date:
    Observer: Anonymous eBirder
    Location: Terlingua—Study Butte WTP (restricted access)
  88. Lesser Scaup Aythya affinis
    # Count: 1
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  89. Snow Goose Anser caerulescens
    # Count: 2
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  90. Mallard Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Tira Overstreet
    Location: Terlingua—Study Butte WTP (restricted access)
  91. White-throated Sparrow Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Pat Dwyer
    Location: Terlingua—Study Butte WTP (restricted access)
  92. Northern Pintail Anas acuta
    # Count: 1
    Date:
    Observer: Brian Lubinski
    Location: Terlingua—Study Butte WTP (restricted access)
  93. White-faced Ibis Plegadis chihi
    # Count: 1
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  94. Curve-billed Thrasher Toxostoma curvirostre
    # Count: 1
    Date:
    Observer: Pat Dwyer
    Location: Terlingua—Study Butte WTP (restricted access)
  95. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)
  96. Least Sandpiper Calidris minutilla
    # Count: 2
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  97. Cassin's Kingbird Tyrannus vociferans
    # Count: 1
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  98. Scissor-tailed Flycatcher Tyrannus forficatus
    # Count: 1
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  99. Northern Mockingbird Mimus polyglottos
    # Count: 3
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  100. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  101. Canyon Towhee Melozone fusca
    # Count: 1
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  102. Bronzed Cowbird Molothrus aeneus
    # Count: 1
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  103. Virginia's Warbler Leiothlypis virginiae
    # Count: 1
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  104. MacGillivray's Warbler Geothlypis tolmiei
    # Count: 2
    Date:
    Observer: Vivek Govind Kumar
    Location: Terlingua—Study Butte WTP (restricted access)
  105. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Keith Goodrum
    Location: Terlingua—Study Butte WTP (restricted access)
  106. Long-billed Dowitcher Limnodromus scolopaceus
    # Count: 1
    Date:
    Observer: Lowell Young
    Location: Terlingua—Study Butte WTP (restricted access)
  107. Baird's Sandpiper Calidris bairdii
    # Count: 1
    Date:
    Observer: Terry Little
    Location: Terlingua—Study Butte WTP (restricted access)
  108. Brown-crested Flycatcher Myiarchus tyrannulus
    # Count: 1
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)
  109. Cassin's Sparrow Peucaea cassinii
    # Count: 1
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)
  110. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)
  111. Lark Sparrow Chondestes grammacus
    # Count: 11
    Date:
    Observer: Jon G.
    Location: Terlingua—Study Butte WTP (restricted access)
  112. Lark Bunting Calamospiza melanocorys
    # Count: 1
    Date:
    Observer: al reyer
    Location: Terlingua—Study Butte WTP (restricted access)
  113. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: Vinobha Pannerselvam
    Location: Terlingua—Study Butte WTP (restricted access)
  114. Least Grebe Tachybaptus dominicus
    # Count: 1
    Date:
    Observer: Mark McDermott
    Location: Terlingua—Study Butte WTP (restricted access)
  115. Pectoral Sandpiper Calidris melanotos
    # Count: 1
    Date:
    Observer: mike baker
    Location: Terlingua—Study Butte WTP (restricted access)
  116. Hudsonian Godwit Limosa haemastica
    # Count: 1
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  117. White-rumped Sandpiper Calidris fuscicollis
    # Count: 1
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)
  118. Western Sandpiper Calidris mauri
    # Count: 1
    Date:
    Observer: David Mehlman
    Location: Terlingua—Study Butte WTP (restricted access)
  119. Pine Siskin Spinus pinus
    # Count: X
    Date:
    Observer: David Mehlman
    Location: Terlingua—Study Butte WTP (restricted access)
  120. American Golden-Plover Pluvialis dominica
    # Count: 1
    Date:
    Observer: Dell Little cc
    Location: Terlingua—Study Butte WTP (restricted access)
  121. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Louise Zemaitis
    Location: Terlingua—Study Butte WTP (restricted access)
  122. Red-winged Blackbird Agelaius phoeniceus
    # Count: 1
    Date:
    Observer: Bill Sain
    Location: Terlingua—Study Butte WTP (restricted access)
  123. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Justin Bosler
    Location: Terlingua—Study Butte WTP (restricted access)
  124. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Justin Bosler
    Location: Terlingua—Study Butte WTP (restricted access)
  125. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Stephen Falick
    Location: Terlingua—Study Butte WTP (restricted access)

Hybrids (1)

  1. Mallard x Mexican Duck (hybrid) Anas platyrhynchos x diazi
    # Count: 3
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)

Additional Taxa (15)

  1. Mallard/Mexican Duck Anas platyrhynchos/diazi
    # Count: 1
    Date:
    Observer: Josh Engel
    Location: Terlingua—Study Butte WTP (restricted access)
  2. blackbird sp. Icteridae sp.
    # Count: 10
    Date:
    Observer: Josh Lefever
    Location: Terlingua—Study Butte WTP (restricted access)
  3. teal sp. Anatidae sp. (teal sp.)
    # Count: 1
    Date:
    Observer: Willie Sekula
    Location: Terlingua—Study Butte WTP (restricted access)
  4. duck sp. Anatidae (duck sp.)
    # Count: 1
    Date:
    Observer: Willie Sekula
    Location: Terlingua—Study Butte WTP (restricted access)
  5. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 1
    Date:
    Observer: Jason Leifester
    Location: Terlingua—Study Butte WTP (restricted access)
  6. pigeon/dove sp. Columbidae sp.
    # Count: 3
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)
  7. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 4
    Date:
    Observer: Angi King Johnston
    Location: Terlingua—Study Butte WTP (restricted access)
  8. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 1
    Date:
    Observer: Mel Cooksey
    Location: Terlingua—Study Butte WTP (restricted access)
  9. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)
  10. swallow sp. Hirundinidae sp.
    # Count: 5
    Date:
    Observer: Sheila Hebert
    Location: Terlingua—Study Butte WTP (restricted access)
  11. shorebird sp. Charadriiformes sp.
    # Count: 1
    Date:
    Observer: Jon G.
    Location: Terlingua—Study Butte WTP (restricted access)
  12. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 2
    Date:
    Observer: Dan Peshka
    Location: Terlingua—Study Butte WTP (restricted access)
  13. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 1
    Date:
    Observer: Dan Peshka
    Location: Terlingua—Study Butte WTP (restricted access)
  14. Cassin's/Western Kingbird Tyrannus vociferans/verticalis
    # Count: 1
    Date:
    Observer: Jon G.
    Location: Terlingua—Study Butte WTP (restricted access)
  15. new world sparrow sp. Passerellidae sp.
    # Count: 2
    Date:
    Observer: Pat Dwyer
    Location: Terlingua—Study Butte WTP (restricted access)