give the names of some birds which have eyes on either side of their head? What is the comparision of size of the eyes and their heads..?

Most of the birds have eyes on either side of their heads to have wider field of view at same time. For example: chicken, pigeon , crow, etc

Eyes of birds are large relative to the size of their head and brain. Their large eyes provide larger and sharper images of the objects around them and help them to have better vision.