WhenToBird

Birding spot · Washington County, Oregon

Birding at Tualatin River National Wildlife Refuge: What You'll See Each Week

In November, the birds most often reported at Tualatin River National Wildlife Refuge are Northern Pintail (91%), Cackling Goose (88%), and Great Blue Heron (85%). It is busiest in spring, when 104 species turn up on at least 1 in 20 checklists, and species counts peak in early May (104 species). 197 species have been reported here across 5,254 complete checklists from 856 birders.

Species by week

0255075100125Jan 1-7: 59 species on 5%+ of 108 checklistsJan 8-14: 64 species on 5%+ of 59 checklistsJan 15-21: 65 species on 5%+ of 69 checklistsJan 22-31: 60 species on 5%+ of 121 checklistsFeb 1-7: 64 species on 5%+ of 74 checklistsFeb 8-14: 57 species on 5%+ of 63 checklistsFeb 15-21: 69 species on 5%+ of 78 checklistsFeb 22-28: 65 species on 5%+ of 79 checklistsMar 1-7: 63 species on 5%+ of 84 checklistsMar 8-14: 65 species on 5%+ of 78 checklistsMar 15-21: 70 species on 5%+ of 91 checklistsMar 22-31: 76 species on 5%+ of 136 checklistsApr 1-7: 84 species on 5%+ of 105 checklistsApr 8-14: 91 species on 5%+ of 138 checklistsApr 15-21: 83 species on 5%+ of 102 checklistsApr 22-30: 98 species on 5%+ of 170 checklistsMay 1-7: 104 species on 5%+ of 172 checklistsMay 8-14: 101 species on 5%+ of 161 checklistsMay 15-21: 96 species on 5%+ of 163 checklistsMay 22-31: 90 species on 5%+ of 183 checklistsJun 1-7: 91 species on 5%+ of 116 checklistsJun 8-14: 89 species on 5%+ of 96 checklistsJun 15-21: 88 species on 5%+ of 80 checklistsJun 22-30: 89 species on 5%+ of 124 checklistsJul 1-7: 90 species on 5%+ of 125 checklistsJul 8-14: 89 species on 5%+ of 99 checklistsJul 15-21: 90 species on 5%+ of 123 checklistsJul 22-31: 88 species on 5%+ of 191 checklistsAug 1-7: 87 species on 5%+ of 110 checklistsAug 8-14: 89 species on 5%+ of 112 checklistsAug 15-21: 90 species on 5%+ of 80 checklistsAug 22-31: 89 species on 5%+ of 213 checklistsSep 1-7: 80 species on 5%+ of 144 checklistsSep 8-14: 87 species on 5%+ of 93 checklistsSep 15-21: 84 species on 5%+ of 97 checklistsSep 22-30: 84 species on 5%+ of 153 checklistsOct 1-7: 72 species on 5%+ of 84 checklistsOct 8-14: 79 species on 5%+ of 110 checklistsOct 15-21: 68 species on 5%+ of 80 checklistsOct 22-31: 69 species on 5%+ of 131 checklistsNov 1-7: 65 species on 5%+ of 91 checklistsNov 8-14: 63 species on 5%+ of 82 checklistsNov 15-21: 67 species on 5%+ of 78 checklistsNov 22-30: 65 species on 5%+ of 87 checklistsDec 1-7: 69 species on 5%+ of 74 checklistsDec 8-14: 64 species on 5%+ of 59 checklistsDec 15-21: 62 species on 5%+ of 74 checklistsDec 22-31: 58 species on 5%+ of 114 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. 1Northern Pintail91%
  2. 2Cackling Goose88%
  3. 3Great Blue Heron85%
  4. 4Canada Goose80%
  5. 5Mallard80%
  6. 6American Wigeon75%
  7. 7Green-winged Teal74%
  8. 8Bald Eagle73%
  9. 9Northern Shoveler71%
  10. 10Great Egret68%
  11. 11Ring-necked Duck66%
  12. 12Dark-eyed Junco65%
  13. 13Song Sparrow64%
  14. 14Black-capped Chickadee64%
  15. 15Northern Flicker63%

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 63 species

  1. Northern Pintail90%
  2. Canada Goose88%
  3. Mallard86%
  4. Bufflehead84%
  5. Cackling Goose83%

Spring 104 species

  1. Canada Goose93%
  2. Mallard92%
  3. Red-winged Blackbird91%
  4. American Robin90%
  5. Gadwall81%

Summer 93 species

  1. Great Blue Heron95%
  2. Canada Goose90%
  3. Mallard90%
  4. Barn Swallow89%
  5. Killdeer88%

Fall 83 species

  1. Great Blue Heron89%
  2. Mallard88%
  3. Canada Goose80%
  4. California Scrub-Jay71%
  5. Great Egret69%

Specialties

Birds reported far more often here than across Oregon.

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.