| duck incubation period | 1.89 | 0.1 | 9728 | 22 | 21 |
| duck incubation period mallard | 0.77 | 0.2 | 8767 | 30 | 62 |
| incubation period for duck eggs | 1.18 | 0.9 | 811 | 31 | 50 |
| muscovy duck incubation period | 0.93 | 0.9 | 4973 | 30 | 36 |
| incubation period for mallard duck eggs | 0.51 | 0.9 | 6723 | 39 | 91 |
| duck egg incubation period | 0.78 | 1 | 2521 | 26 | 71 |
| what is the incubation period for duck eggs | 0.85 | 0.1 | 1619 | 43 | 75 |
| wood duck incubation period | 1.04 | 0.1 | 384 | 27 | 100 |
| call duck incubation period | 0.85 | 0.6 | 9447 | 27 | 6 |
| mallard duck egg incubation period | 0.93 | 0.9 | 5019 | 34 | 65 |
| incubation time for mallard duck eggs | 1.88 | 0.1 | 9776 | 37 | 57 |
| gestation period for mallard duck eggs | 0.7 | 0.2 | 5525 | 38 | 62 |
| mallard duck breeding season | 1.39 | 0.4 | 8270 | 28 | 54 |
| incubating mallard duck eggs | 0.61 | 0.9 | 9389 | 28 | 46 |
| mallard duck eggs hatching time | 1.7 | 0.7 | 7874 | 31 | 2 |
| life cycle of mallard duck | 0.48 | 0.1 | 19 | 26 | 60 |
| mallard duck mating season | 1.84 | 0.7 | 5394 | 26 | 32 |
| incubation period of duck | 1.76 | 0.4 | 8254 | 25 | 19 |
| mallard duck hatching eggs | 0.98 | 0.2 | 5716 | 26 | 26 |
| mating season for mallard ducks | 1.32 | 0.5 | 9463 | 31 | 21 |
| wild mallard ducks hatching eggs | 1.1 | 0.8 | 603 | 32 | 45 |
| mallard duck nesting season | 1.17 | 0.4 | 8490 | 27 | 68 |
| how to hatch mallard duck eggs | 0.8 | 0.3 | 6834 | 30 | 48 |
| how was the mallard duck introduced | 0.04 | 0.9 | 1737 | 35 | 88 |
| mating habits of mallard ducks | 1.13 | 0.7 | 3214 | 30 | 4 |
| when do mallard ducks lay eggs | 1.94 | 0.2 | 3020 | 30 | 50 |
| what is the incubation time for ducks | 1.48 | 0.4 | 2098 | 37 | 66 |
| when do mallard ducks have babies | 2 | 0.9 | 7325 | 33 | 7 |
