| << | April 2021 | >> | ||||
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
| 28 | 29 | 30 | 31 | 1 Discover on Demand: Big Cats of Wisconsin | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 18 | 19 | 20 | 21 | 22 | 23 | 24 Spring Phenology Hike (FULL) |
| 25 | 26 | 27 | 28 | 29 | 30 | 1 |
| << | April 2021 | >> | ||||
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
| 28 | 29 | 30 | 31 | 1 Discover on Demand: Big Cats of Wisconsin | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 18 | 19 | 20 | 21 | 22 | 23 | 24 Spring Phenology Hike (FULL) |
| 25 | 26 | 27 | 28 | 29 | 30 | 1 |