Eggs are laid at intervals and will hatch at intervals.
Mothers will remove bad eggs, eggshells, and bodies to keep nest clean.
Some baby birds are attacted by nasty insects and die. Blowfly is one.
Once out of the nest the mother bird will scream like crazy if you or another predictor gets near where one of the babies are. So if you hear a bird freaking out, something is close to her babies.
Last year mom and dad robins were spasing out quite intensely where I was weeding. Their babies were still in the nest so I just kept working. They kept really flipping. I looked above my head and that's when I saw just what they were really flipping about. A snake was in the tree just above my head snatching the babies up as dinner! I hit the tree trunk with the shovel several times. The snake fell with a thud and took off.
Too late to help.
I raised bluebirds for 5yrs. Then my neighbor screwed that up.
Enjoy the little guys. They grow up fast!
