how long does it take for chickadee eggs to hatch
1 Incubation lasts 12-13 days. 2  It usually begins the day before the female lays the last egg, so that all eggs will hatch within 24 hours of each other. 3  If eggs are laid late in the season, incubation may start earlier. If eggs are laid late in the season, incubation may start earlier. 2  Incubation usually occurs for 20-25 minute time periods, interrupted by 7-8 minutes for feeding. 3  Apparently only the female incubates. 4  Hatching: for the first few days, the male brings almost all the food so the female can keep hatchlings warm.