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No, not if you want the bird to return to incubating the eggs.
A bird egg is hatched by heating, or incubating it and waiting until the chick hatches. The time it takes to hatch varies from species to species.
If you incubate them, probably about 2-3 weeks. If you do not and let your bird handle it, then probably no less than incubating the eggs. -Kynlee Bird Expert
Expired food doesn't contain so much necessary vitamins and minerals baby bird needs to grow properly. It doesn't kill the bird, but may cause some problems with chicks development.
The mother hatches an egg The mother lays the eggs, sits on them to keep them warm while incubating, then feeds them when they hatch out.
The Guthix raptor is a pet a player may obtain by incubating a green bird's egg in a pet shop incubator, which requires level 70 Summoning.
yes
Land development
If you get the necessary things for bird control, it should make the birds go away.
sheeding
The bird came first. After a process of long evolution, birds transformed from reptiles to aves. After evolution, the first laid eggs. After that the evolution process started rapidly.
Egg incubation