Birding spot · Sussex County, New Jersey
Birding at Wallkill River National Wildlife Refuge: What You'll See Each Week In November, the birds most often reported at Wallkill River National Wildlife Refuge are Mallard (90%), Canada Goose (89%), and Song Sparrow (82%). It is busiest in spring, when 107 species turn up on at least 1 in 20 checklists, and species counts peak in early May (103 species). 213 species have been reported here across 2,362 complete checklists from 582 birders.
Species by week 0 25 50 75 100 125 Jan 1-7: 50 species on 5%+ of 40 checklists Jan 8-14: 46 species on 5%+ of 17 checklists Jan 15-21: 41 species on 5%+ of 27 checklists Jan 22-31: 54 species on 5%+ of 30 checklists Feb 1-7: 44 species on 5%+ of 27 checklists Feb 8-14: 54 species on 5%+ of 30 checklists Feb 15-21: 53 species on 5%+ of 38 checklists Feb 22-28: 58 species on 5%+ of 31 checklists Mar 1-7: 59 species on 5%+ of 36 checklists Mar 8-14: 61 species on 5%+ of 43 checklists Mar 15-21: 63 species on 5%+ of 53 checklists Mar 22-31: 65 species on 5%+ of 67 checklists Apr 1-7: 66 species on 5%+ of 44 checklists Apr 8-14: 78 species on 5%+ of 51 checklists Apr 15-21: 71 species on 5%+ of 46 checklists Apr 22-30: 94 species on 5%+ of 51 checklists May 1-7: 103 species on 5%+ of 55 checklists May 8-14: 97 species on 5%+ of 75 checklists May 15-21: 98 species on 5%+ of 46 checklists May 22-31: 93 species on 5%+ of 110 checklists Jun 1-7: 91 species on 5%+ of 70 checklists Jun 8-14: 83 species on 5%+ of 33 checklists Jun 15-21: 77 species on 5%+ of 32 checklists Jun 22-30: 81 species on 5%+ of 35 checklists Jul 1-7: 82 species on 5%+ of 33 checklists Jul 8-14: 76 species on 5%+ of 47 checklists Jul 15-21: 81 species on 5%+ of 47 checklists Jul 22-31: 85 species on 5%+ of 95 checklists Aug 1-7: 88 species on 5%+ of 73 checklists Aug 8-14: 81 species on 5%+ of 75 checklists Aug 15-21: 90 species on 5%+ of 84 checklists Aug 22-31: 94 species on 5%+ of 155 checklists Sep 1-7: 90 species on 5%+ of 107 checklists Sep 8-14: 82 species on 5%+ of 44 checklists Sep 15-21: 75 species on 5%+ of 43 checklists Sep 22-30: 93 species on 5%+ of 53 checklists Oct 1-7: 88 species on 5%+ of 42 checklists Oct 8-14: 92 species on 5%+ of 30 checklists Oct 15-21: 79 species on 5%+ of 30 checklists Oct 22-31: 86 species on 5%+ of 60 checklists Nov 1-7: 74 species on 5%+ of 38 checklists Nov 8-14: 62 species on 5%+ of 29 checklists Nov 15-21: 50 species on 5%+ of 28 checklists Nov 22-30: 54 species on 5%+ of 42 checklists Dec 1-7: 61 species on 5%+ of 30 checklists Dec 8-14: 59 species on 5%+ of 29 checklists Dec 15-21: 46 species on 5%+ of 22 checklists Dec 22-31: 52 species on 5%+ of 39 checklists Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 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 Mallard 90% 2 Canada Goose 89% 3 Song Sparrow 82% 4 Northern Harrier 72% 5 White-throated Sparrow 69% 6 American Crow 67% 7 Blue Jay 66% 8 Green-winged Teal 64% 9 Red-bellied Woodpecker 62% 10 Swamp Sparrow 57% 11 Northern Flicker 56% 12 Downy Woodpecker 53% 13 American Black Duck 53% 14 Black-capped Chickadee 53% 15 Great Blue Heron 47% 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 Specialties Birds reported far more often here than across New Jersey.
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 .
Mallard90%
Canada Goose89%
Song Sparrow82%
White-throated Sparrow69%
American Crow67%
Blue Jay66%
Green-winged Teal64%
Red-bellied Woodpecker62%
Swamp Sparrow57%
Northern Flicker56%
Downy Woodpecker53%
American Black Duck53%
Black-capped Chickadee53%
Great Blue Heron47%