'Birds' in the Bible

Look at the birds of the sky: They don’t sow or reap or gather into barns, yet your heavenly Father feeds them. Aren’t you worth more than they?

And Jesus saith unto him, The foxes have holes, and the birds of the air have nests; but the Son of man hath not where to lay his head.

As he was sowing, some seed fell along the path, and the birds came and ate them up.

Which indeed is the least of all seeds: but when it is grown, it is the greatest among herbs, and becometh a tree, so that the birds of the air come and lodge in the branches thereof.