WhenToBird

Birding spot · Cameron County, Texas

Birding at Lower Rio Grande Valley National Wildlife Refuge: What You'll See Each Week

In November, the birds most often reported at Lower Rio Grande Valley National Wildlife Refuge are Laughing Gull (96%), Brown Pelican (92%), and Ruddy Turnstone (90%). It is busiest in spring, when 61 species turn up on at least 1 in 20 checklists, and species counts peak in early October (66 species). 143 species have been reported here across 2,059 complete checklists from 1,265 birders.

Species by week

020406080Jan 1-7: 51 species on 5%+ of 96 checklistsJan 8-14: 49 species on 5%+ of 89 checklistsJan 15-21: 56 species on 5%+ of 78 checklistsJan 22-31: 58 species on 5%+ of 103 checklistsFeb 1-7: 55 species on 5%+ of 67 checklistsFeb 8-14: 54 species on 5%+ of 87 checklistsFeb 15-21: 50 species on 5%+ of 81 checklistsFeb 22-28: 54 species on 5%+ of 79 checklistsMar 1-7: 52 species on 5%+ of 73 checklistsMar 8-14: 57 species on 5%+ of 74 checklistsMar 15-21: 58 species on 5%+ of 43 checklistsMar 22-31: 58 species on 5%+ of 79 checklistsApr 1-7: 56 species on 5%+ of 55 checklistsApr 8-14: 55 species on 5%+ of 48 checklistsApr 15-21: 59 species on 5%+ of 68 checklistsApr 22-30: 56 species on 5%+ of 66 checklistsMay 1-7: 57 species on 5%+ of 33 checklistsMay 8-14: 53 species on 5%+ of 14 checklistsMay 15-21: 46 species on 5%+ of 14 checklistsMay 22-31: low data (8 checklists)Jun 1-7: low data (5 checklists)Jun 8-14: low data (3 checklists)Jun 15-21: 45 species on 5%+ of 10 checklistsJun 22-30: 40 species on 5%+ of 10 checklistsJul 1-7: low data (8 checklists)Jul 8-14: low data (3 checklists)Jul 15-21: low data (3 checklists)Jul 22-31: 46 species on 5%+ of 11 checklistsAug 1-7: low data (6 checklists)Aug 8-14: low data (7 checklists)Aug 15-21: low data (5 checklists)Aug 22-31: low data (7 checklists)Sep 1-7: low data (5 checklists)Sep 8-14: low data (2 checklists)Sep 15-21: low data (6 checklists)Sep 22-30: low data (9 checklists)Oct 1-7: 66 species on 5%+ of 13 checklistsOct 8-14: 57 species on 5%+ of 15 checklistsOct 15-21: 43 species on 5%+ of 21 checklistsOct 22-31: 54 species on 5%+ of 35 checklistsNov 1-7: 58 species on 5%+ of 106 checklistsNov 8-14: 58 species on 5%+ of 205 checklistsNov 15-21: 63 species on 5%+ of 60 checklistsNov 22-30: 57 species on 5%+ of 39 checklistsDec 1-7: 63 species on 5%+ of 58 checklistsDec 8-14: 61 species on 5%+ of 56 checklistsDec 15-21: 64 species on 5%+ of 38 checklistsDec 22-31: 56 species on 5%+ of 58 checklistsJanFebMarAprMayJunJulAugSepOctNovDec
Number of species reported on at least 5% of complete checklists, by week (4 per month). Grey bars: fewer than 10 checklists, not counted.

In November: what to expect

  1. 1Laughing Gull96%
  2. 2Brown Pelican92%
  3. 3Ruddy Turnstone90%
  4. 4Black Skimmer89%
  5. 5Black-necked Stilt89%
  6. 6Willet86%
  7. 7Great Egret82%
  8. 8Caspian Tern78%
  9. 9Great Blue Heron73%
  10. 10Great-tailed Grackle72%
  11. 11Snowy Egret71%
  12. 12Forster's Tern69%
  13. 13American Oystercatcher66%
  14. 14Long-billed Curlew66%
  15. 15Sanderling65%

Share of complete checklists at this spot that reported the bird in November. The sparkline is the whole year, with this month highlighted.

Season by season

Winter 54 species

  1. Laughing Gull95%
  2. Black Skimmer92%
  3. Brown Pelican89%
  4. Willet87%
  5. Black-necked Stilt85%

Spring 61 species

  1. Laughing Gull93%
  2. Black Skimmer91%
  3. Willet87%
  4. Black-necked Stilt82%
  5. Great Egret72%

Summer 51 species

  1. Laughing Gull97%
  2. Willet92%
  3. Brown Pelican79%
  4. Black Skimmer78%
  5. Royal Tern72%

Fall 58 species

  1. Laughing Gull96%
  2. Brown Pelican93%
  3. Ruddy Turnstone90%
  4. Black Skimmer85%
  5. Willet85%

Specialties

Birds reported far more often here than across Texas.

Nearby spots

Frequency is the share of complete checklists at this location that listed the bird, 2016–2025. Busy places report more of everything, and the weekly chart counts species on at least 5% of checklists so a few stray reports do not inflate it. How to read it.