Hummingbird eggs are the smallest, and are about the size of a chili bean. The egg of the house sparrow is next largest and robin is the largest of the three.
The bee humming bird lays the smallest egg at half a gram, and the ostrich lays the biggest at 3.3lbs. The animal that lays the smallest eggs are insects but when referring to vertebrates the animal that lays the smallest egg is the hummingbird.
A robin lays a small blue round egg. If you have found one on the ground don't pick it up because then the robin won't take care of it. It's important to remember that birds can smell human scent!
This is a robin.
A sparrow is a bird, so it lays eggs rather than reproducing via live birth.
The robin. See the related link for more information.
Well I know that a 'Bee Hummingbird' lays eggs smaller than a coffee bean (she lays them two at a time) But I don't know if it is the smallest, yet it seems extremly small to me!
robin
they don't interact, the cow bird lays egg in the sparrow nest and leaves, its not involved in any raising of its young
up to 7 eggs at once
humming bird
a steller jay
humming bird