feed amount

This may be a problem that others experience too. I have always heard that When birds have young in the nest, it is good to have food available to them at all times, so they can feed the young when they want it. So i have a small feeding cup in each nest box. I start in the morning by filling...

If I feed my birds at night how much should I feed them to keep them hungry when I let then go to fly the next night. Currently I let them go to fly about 2 hours before sundown. toward the last 1/2 hour I whistle for them and put feed in the loft and fresh water. I always blow a survival...