With today being the first day of spring, WINC staff and volunteers are anticipating the arrival of this year’s first newborn! We often receive calls asking when native Wisconsin mammals are raising young or when birds will have their first clutch of eggs. Check out the table below to see when WINC’s most common patients have babies…and consequently when our nurseries will start filling up to the brim!
| Birds | ||
| Species | Hatch Dates | # of Broods/Year |
| Great Horned Owl | February – July | 1 |
| Red-Tailed Hawk | March – June | 1 |
| Canada Goose | March – July | 1 |
| Pigeon | March – August | 2 – 3 |
| Coopers Hawk | April – July | 1 |
| American Kestrel | April – July | 1 |
| Barred Owl | April – August | 1 |
| Screech Owl | April – June | 1 |
| Mourning Dove | April – August | 1 – 2 |
| Great Blue Heron | April – July | 2 – 3 |
| Sandhill Crane | April – May | 1 |
| Mallard Duck | April – August | 1 |
| American Robin | April – July | 2 – 3 |
| Red-Winged Blackbird | April – June | 1 |
| American Crow | April – June | 1 – 2 |
| Eastern Bluebird | April – July | 1 – 2 |
| Northern Cardinal | April – August | 1 – 4 |
| Tree Swallow | May – July | 1 |
| Barn Swallow | May – August | 1 – 2 |
| Blue Jay | May – July | 1 – 2 |
| Mammals | ||
| Species | Birth Dates | # of Litters/Year |
| Opossum | January – March, May – June, August – September | 1 – 2 |
| Raccoon | February – April | 1 |
| Gray Squirrel | February – April, September – October | 2 |
| Cottontail Rabbit | February – October | 3 – 4 |
| Fox | March – May | 1 |
| Coyote | March – May | 1 |
| Woodchuck | March – May | 1 |
| Muskrat | April – August | 2 – 3 |
| Red Squirrel | April – May, August – September | 1 – 2 |
| Chipmunk | April – May, July – August | 1 – 2 |
Do you think you’ve found an orphaned baby? Please call the Wildlife In Need Center at 262-965-3090.
