We have a fishless pond devoted to frogs, to give them a place to breed and for the tadpoles to develop. This year for the first time since I started this frog-support operation, there have been zero frog eggs. Plenty of frogs gather around the pond every night and sing their little hearts out, but no eggs. Normally we've got tadpoles starting to develop legs by this time of year. I heard from a friend in another state that the same thing has been going on with his frog set-up this year. I am stumped trying to understand why the frogs are not breeding. Does anyone here have an idea what the cause could be? Are you seeing the same phenomenon?