Nest building occurs in late April and May. Crows lay 1-6 eggs, which are incubated for 18 days. The young remain in the nest for 28-35 days. It is common for youngsters to leave the nest before they are able to fly and they can spend up to several days on the ground.
What time of year do crows breed?
Numbers peak in winter and then decrease near the beginning of the breeding season (usually in March). It appears that all crows will join winter roosts, even territorial breeding crows. Most breeding crows sleep on their territories during the breeding season, but join the roosts afterward.
Do crows return to the same nest?
Crows return to the same nest territory year after year, often a few weeks before they start building. ... Many larger twigs that form the base of the nest are broken directly off trees.