The nests are cup shaped and constructed of twigs and bark and lined with grass, leaves, hair, feathers etc. An average of 5 eggs are laid in late April to early May and hatch in about 20 days. The eggs are 1.6 and are bluish-green with brown markings. They are attracted to garbage dumps and have a well-known fondness for melons and corn. The habit of farmers placing scarecrows in their grain fields resulted from the crow s incessant damaging and scavenging.
Crows do help farmers however when they eat insects attracted by their crops.
They exhibit a cooperative defense behavior where they will often gang-up on or mob an enemy until it leaves the area. Man is the number one enemy of the crow. Habits Crows are very social and live in family groups of between 2 to 15 birds, averaging 4 birds. A group of crows is called a murder . Pecking orders are evident as in all animals.