There is no in and out. Frogs do something called "amplexing," and fertilization is external. The male basically triggers egg release by mounting and hugging the female, for lack of a better way to put it, and fertilizes the eggs as they're released.
There are many frogs this year (I'm actually surprised so many survived, given the brutal winter), and therefore much mating, and many masses of eggs. Soon there will be many tadpoles, mainly because the robins arrived while the worms were still under two or three feet of snow; so they departed for easier worm-pickings. That's also to the frogs' advantage because the robins will eat the eggs and tadpoles if they get hungry enough. (The froggies still have to contend with the hawks, snakes, newts, and so forth, however.)
I plan to shoot video of the various frog stages, as well as other wildlife-related things, as the opportunities present themselves. I basically just set up the camera and leave it running for most animals. I also hope to eventually shoot some footage of hawks from the air, from an open-cockpit ultralight, but this is not the time to do that. For one, they get very territorial and defensive this time of year; and for another, I'm on a medical self-grounding at the moment pending some tests.
-Rich