Sometimes it seems like no matter what you do your birds just won’t produce viable eggs. Here are some things to watch out for:

•    Birds that lay a large clutch, then cover them and start a new clutch
•    Trying to breed birds that are too young
•    Trying to breed a female that is too old
•    A male and female that don’t “hit it off”

Oftentimes separating birds of optimum breeding age and re-pairing them with other mates might do the trick. How often do arranged marriages work out, after all?  By the way, it’s a good idea when breeding canaries and other birds to keep them separated by color so a yellow canary doesn’t get a chance to fall hopelessly in love with a white variation. You get the idea.