WhenToBird

Birding spot · St. Tammany Parish, Louisiana

Birding at Big Branch Marsh National Wildlife Refuge (Bayou Cochon): What You'll See Each Week

In November, the birds most often reported at Big Branch Marsh National Wildlife Refuge (Bayou Cochon) are Great Egret (95%), Great Blue Heron (89%), and Boat-tailed Grackle (84%). It is busiest in spring, when 84 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of April (87 species). 209 species have been reported here across 1,384 complete checklists from 387 birders.

Species by week

020406080100Jan 1-7: 76 species on 5%+ of 43 checklistsJan 8-14: 84 species on 5%+ of 35 checklistsJan 15-21: 74 species on 5%+ of 33 checklistsJan 22-31: 80 species on 5%+ of 48 checklistsFeb 1-7: 82 species on 5%+ of 32 checklistsFeb 8-14: 85 species on 5%+ of 40 checklistsFeb 15-21: 77 species on 5%+ of 40 checklistsFeb 22-28: 70 species on 5%+ of 42 checklistsMar 1-7: 79 species on 5%+ of 42 checklistsMar 8-14: 75 species on 5%+ of 32 checklistsMar 15-21: 81 species on 5%+ of 25 checklistsMar 22-31: 82 species on 5%+ of 30 checklistsApr 1-7: 74 species on 5%+ of 23 checklistsApr 8-14: 87 species on 5%+ of 37 checklistsApr 15-21: 86 species on 5%+ of 24 checklistsApr 22-30: 87 species on 5%+ of 39 checklistsMay 1-7: 69 species on 5%+ of 27 checklistsMay 8-14: 69 species on 5%+ of 26 checklistsMay 15-21: 85 species on 5%+ of 19 checklistsMay 22-31: 54 species on 5%+ of 23 checklistsJun 1-7: 68 species on 5%+ of 18 checklistsJun 8-14: 54 species on 5%+ of 12 checklistsJun 15-21: 68 species on 5%+ of 13 checklistsJun 22-30: 68 species on 5%+ of 20 checklistsJul 1-7: 83 species on 5%+ of 20 checklistsJul 8-14: 74 species on 5%+ of 13 checklistsJul 15-21: 67 species on 5%+ of 15 checklistsJul 22-31: 66 species on 5%+ of 17 checklistsAug 1-7: 72 species on 5%+ of 14 checklistsAug 8-14: 67 species on 5%+ of 26 checklistsAug 15-21: 68 species on 5%+ of 22 checklistsAug 22-31: 71 species on 5%+ of 37 checklistsSep 1-7: 61 species on 5%+ of 21 checklistsSep 8-14: 69 species on 5%+ of 27 checklistsSep 15-21: 54 species on 5%+ of 21 checklistsSep 22-30: 79 species on 5%+ of 36 checklistsOct 1-7: 81 species on 5%+ of 32 checklistsOct 8-14: 70 species on 5%+ of 25 checklistsOct 15-21: 75 species on 5%+ of 26 checklistsOct 22-31: 85 species on 5%+ of 66 checklistsNov 1-7: 85 species on 5%+ of 45 checklistsNov 8-14: 75 species on 5%+ of 37 checklistsNov 15-21: 82 species on 5%+ of 27 checklistsNov 22-30: 82 species on 5%+ of 40 checklistsDec 1-7: 72 species on 5%+ of 15 checklistsDec 8-14: 63 species on 5%+ of 21 checklistsDec 15-21: 76 species on 5%+ of 13 checklistsDec 22-31: 65 species on 5%+ of 45 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. 1Great Egret95%
  2. 2Great Blue Heron89%
  3. 3Boat-tailed Grackle84%
  4. 4Red-winged Blackbird79%
  5. 5Osprey79%
  6. 6Belted Kingfisher77%
  7. 7Laughing Gull77%
  8. 8Common Gallinule74%
  9. 9Pied-billed Grebe69%
  10. 10Northern Harrier68%
  11. 11Killdeer62%
  12. 12Swamp Sparrow60%
  13. 13Brown Pelican57%
  14. 14Loggerhead Shrike55%
  15. 15Tricolored Heron55%

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 78 species

  1. Great Egret92%
  2. Great Blue Heron89%
  3. Pied-billed Grebe81%
  4. Red-winged Blackbird80%
  5. Boat-tailed Grackle76%

Spring 84 species

  1. Red-winged Blackbird93%
  2. Laughing Gull89%
  3. Boat-tailed Grackle85%
  4. Common Gallinule74%
  5. Mourning Dove71%

Summer 68 species

  1. Red-winged Blackbird93%
  2. Boat-tailed Grackle87%
  3. Great Egret84%
  4. Mourning Dove84%
  5. Common Gallinule77%

Fall 83 species

  1. Great Egret92%
  2. Great Blue Heron85%
  3. Red-winged Blackbird84%
  4. Boat-tailed Grackle80%
  5. Osprey74%

Specialties

Birds reported far more often here than across Louisiana.

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.