Bill Balkwill has kept a record over a number of years of the bird species observed on the Balkwill farm. The following list is a summary as of August 2004.
| Species | Observed | Nesting Record |
|---|---|---|
| Great Blue Heron | Yes | |
| Great Egret | Yes | |
| Green Heron | Yes | |
| Turkey Vulture | Yes | |
| Canada Goose | Yes | |
| Wood Duck | Yes | |
| Mallard | Yes | |
| Bald Eagle | Yes | |
| Northern Harrier | Yes | |
| Sharp-shinned Hawk | Yes | |
| Cooper's Hawk | Yes | |
| Red-shouldered Hawk | Yes | |
| Broad-winged Hawk | Yes | |
| Red-tailed Hawk | Yes | |
| Rough-legged Hawk | Yes | |
| Golden Eagle | Yes | |
| American Kestrel | Yes | |
| Ring-necked Pheasant | Yes | |
| Wild Turkey | Yes | |
| Sandhill Crane | Yes | |
| Black-bellied Plover | Yes | |
| Killdeer | Yes | |
| Greater Yellowlegs | Yes | |
| Spotted Sandpiper | Yes | |
| American Woodcock | Yes | |
| Ring-billed Gull | Yes | |
| Herring Gull | Yes | |
| Rock Pigeon | Yes | |
| Mourning Dove | Yes | |
| Black-billed Cuckoo | Yes | |
| Yellow-billed Cuckoo | Yes | |
| Eastern Screech-Owl | Yes | |
| Great Horned Owl | Yes | |
| Snowy Owl | Yes | |
| Long-eared Owl | Yes | |
| Northern Saw-whet Owl | Yes | |
| Common Nighthawk | Yes | |
| Whip-poor-will | Yes | |
| Chimney Swift | Yes | |
| Ruby-throated Hummingbird | Yes | |
| Red-headed Woodpeciker | Yes | |
| Red-bellied Woodpecker | Yes | |
| Yellow-bellied Woodpecker | Yes | |
| Downy Woodpecker | Yes | |
| Hairy Woodpecker | Yes | |
| Northern Flicker | Yes | |
| Eastern Wood-Pewee | Yes | |
| Willow Flycatcher | Yes | |
| Eastern Phoebe | Yes | |
| Great Crested Flycatcher | Yes | |
| Eastern Kingbird | Yes | |
| Northern Shrike | Yes | |
| Warbling Vireo | Yes | |
| Red-eyed Vireo | Yes | |
| Blue Jay | Yes | |
| American Crow | Yes | |
| Horned Lark | Yes | |
| Purple Martin | Yes | |
| Tree Swallow | Yes | |
| Barn Swallow | Yes | |
| Black-capped Chickadee | Yes | |
| Tufted Titmouse | Yes | |
| Red-breasted Nuthatch | Yes | |
| White-breasted Nuthatch | Yes | |
| Brown Creeper | Yes | |
| Carolina Wren | Yes | |
| House Wren | Yes | |
| Winter Wren | Yes | |
| Golden-crowned Kinglet | Yes | |
| Ruby-crowned Kinglet | Yes | |
| Blue-gray Gnatcatcher | Yes | |
| Eastern Bluebird | Yes | |
| Veery | Yes | |
| Gray-cheeked Thrush | Yes | |
| Swainson's Thrush | Yes | |
| Hermit Thrush | Yes | |
| Wood Thrush | Yes | |
| American Robin | Yes | |
| Gray Catbird | Yes | |
| Northern Mockingbird | Yes | |
| Brown Thrasher | Yes | |
| European Starling | Yes | |
| American Pipit | Yes | |
| Cedar Waxwing | Yes | |
| Yellow Warbler | Yes | |
| Chestnut-sided Warbler | Yes | |
| Magnolia Warbler | Yes | |
| Cape May Warbler | Yes | |
| Black-throated Blue Warbler | Yes | |
| Yellow-rumped Warbler | Yes | |
| Black-throated Green Warbler | Yes | |
| Blackburnian Warbler | Yes | |
| Prairie Warbler | Yes | |
| Palm Warbler | Yes | |
| Bay-breasted Warbler | Yes | |
| Black-and-white Warbler | Yes | |
| American Redstart | Yes | |
| Prothonotary Warbler | Yes | |
| Ovenbird | Yes | |
| Mourning Warbler | Yes | |
| Common Yellowthroat | Yes | |
| Wilson's Warbler | Yes | |
| Canada Warbler | Yes | |
| Yellow-breasted Chat | Yes | |
| Scarlet Tanager | Yes | |
| Eastern Towhee | Yes | |
| American Tree Sparrow | Yes | |
| Chipping Sparrow | Yes | |
| Field Sparrow | Yes | |
| Vesper Sparrow | Yes | |
| Savannah Sparrow | Yes | |
| Fox Sparrow | Yes | |
| Song Sparrow | Yes | |
| Swamp Sparrow | Yes | |
| White-throated Sparrow | Yes | |
| White-crowned Sparrow | Yes | |
| Dark-eyed Junco | Yes | |
| Lapland Longspur | Yes | |
| Snow Bunting | Yes | |
| Northern Cardinal | Yes | |
| Rose-breasted Grosbeak | Yes | |
| Indigo Bunting | Yes | |
| Bobolink | Yes | |
| Red-winged Blackbird | Yes | |
| Eastern Meadowlark | Yes | |
| Rusty Blackbird | Yes | |
| Common Grackle | Yes | |
| Brown-headed Cowbird | Yes | |
| Orchard Oriole | Yes | |
| Baltimore Oriole | Yes | |
| House Finch | Yes | |
| Common Redpoll | Yes | |
| Pine Siskin | Yes | |
| American Goldfinch | Yes | |
| Evening Grosbeak | Yes | |
| House Sparrow | Yes | |
| Totals | 86 seen | 50 nested |