It swells up if (birds) eat too much and will damage their stomach. That can be a problem.

Every year it's a mixture. We have some that retire and some that move out of the area and some of the positions that opened up are new positions we put into our budget.

Sometimes if they left the nest, you can put them back in the nest if the nest is still intact or put them close to it. Usually the parents won't care.

Our population continues to grow, so we have had to add positions to handle that growth,

With most birds, if you put them back where the parents can find them, they'll continue caring for them.

Soon I will be everyone's Daddy.