Bird Finder

Top Birds at Erwin Road Swamp in April
relative to other locations within 25 miles of Cary, NC, USA

based on 9 checklists

This page shows the probability of a species appearing on a checklist at Erwin Road Swamp during the month of April. The difference in probability relative to other nearby locations is also shown, to highlight which birds are particularly likely to be found (or not found) at this specific location. The chart shows how many distinct species have historically been observed at this location for each month of the year.

Back to the Top Birds list

Rank Info Pics Species Entire Region This Location Difference Relative
1   Northern Cardinal 80.6% 77.8% 2.8% 1.0x
2   Eastern Bluebird 48.0% 55.6% 7.5% 1.2x
3   American Goldfinch 44.1% 55.6% 11.4% 1.3x
4   Common Yellowthroat 33.1% 55.6% 22.5% 1.7x
5   Blue-gray Gnatcatcher 62.2% 44.4% 17.7% 0.7x
6   Blue Jay 50.3% 44.4% 5.9% 0.9x
7   Great Blue Heron 45.6% 44.4% 1.2% 1.0x
8   Turkey Vulture 43.4% 44.4% 1.0% 1.0x
9   American Robin 43.1% 44.4% 1.4% 1.0x
10   Chipping Sparrow 42.3% 44.4% 2.1% 1.0x
11   Red-winged Blackbird 25.7% 44.4% 18.8% 1.7x
12   Brown Thrasher 20.9% 44.4% 23.6% 2.1x
13   Carolina Wren 70.3% 33.3% 37.0% 0.5x
14   Red-bellied Woodpecker 58.9% 33.3% 25.6% 0.6x
15   Northern Parula 36.1% 33.3% 2.8% 0.9x
16   Mallard 31.3% 33.3% 2.1% 1.1x
17   Song Sparrow 22.0% 33.3% 11.4% 1.5x
18   Yellow-throated Warbler 18.8% 33.3% 14.5% 1.8x
19   Tufted Titmouse 70.1% 22.2% 47.9% 0.3x
20   American Crow 56.5% 22.2% 34.2% 0.4x
21   Canada Goose 49.4% 22.2% 27.2% 0.4x
22   Yellow-rumped Warbler 47.6% 22.2% 25.3% 0.5x
23   Eastern Towhee 46.6% 22.2% 24.4% 0.5x
24   Downy Woodpecker 39.1% 22.2% 16.8% 0.6x
25   White-eyed Vireo 36.0% 22.2% 13.7% 0.6x
26   Brown-headed Cowbird 35.4% 22.2% 13.2% 0.6x
27   Brown-headed Nuthatch 31.5% 22.2% 9.3% 0.7x
28   Northern Mockingbird 28.8% 22.2% 6.5% 0.8x
29   Common Grackle 28.0% 22.2% 5.8% 0.8x
30   Pileated Woodpecker 20.2% 22.2% 2.0% 1.1x
31   Black Vulture 19.9% 22.2% 2.4% 1.1x
32   Red-tailed Hawk 13.9% 22.2% 8.3% 1.6x
33   Swamp Sparrow 13.4% 22.2% 8.8% 1.7x
34   Carolina Chickadee 66.9% 11.1% 55.8% 0.2x
35   White-throated Sparrow 56.2% 11.1% 45.1% 0.2x
36   Mourning Dove 46.4% 11.1% 35.3% 0.2x
37   Pine Warbler 42.9% 11.1% 31.8% 0.3x
38   Eastern Phoebe 33.2% 11.1% 22.1% 0.3x
39   Ruby-crowned Kinglet 32.6% 11.1% 21.5% 0.3x
40   Red-eyed Vireo 29.6% 11.1% 18.5% 0.4x
41   White-breasted Nuthatch 22.1% 11.1% 11.0% 0.5x
42   Gray Catbird 19.6% 11.1% 8.5% 0.6x
43   Great Crested Flycatcher 19.5% 11.1% 8.4% 0.6x
44   Belted Kingfisher 19.3% 11.1% 8.2% 0.6x
45   Ovenbird 19.3% 11.1% 8.2% 0.6x
46   Barn Swallow 18.9% 11.1% 7.8% 0.6x
47   Northern Flicker 14.1% 11.1% 3.0% 0.8x
48   Tree Swallow 11.7% 11.1% 0.6% 0.9x
49   Palm Warbler 8.7% 11.1% 2.4% 1.3x
50   Hermit Thrush 8.6% 11.1% 2.5% 1.3x
51   Green Heron 7.1% 11.1% 4.0% 1.6x
52   Blue-headed Vireo 4.3% 11.1% 6.8% 2.6x
53   Wild Turkey 1.7% 11.1% 9.4% 6.5x
54   Orange-crowned Warbler 0.4% 11.1% 10.8% 31.1x