I am very curious about this. They do okay outside? Do you keep them out there all year round. I have thought of doing this, but didn't know how to deal with winter. It can get cold here, maybe 39 or so for a few nights in the winter but only for a month or two.
The bin is 1/4 buried in the soil so that helps with temp , it has no bottom just a screen bottom which is used to keep skinks out .
I have never seen the toads dig .
The coldest they have experienced is rare winter nights of 50s , they simply weren't active but it didn't seem to bother them .
Average winter nights here are 70s and perhaps high 60s .
They are kept in an area which gets dappled sun NOT direct but the males seek the sun rays and seem to bask .
The heat doesn't bother them at all and I think they prefer it but keep in mind that summer here we get close to daily downpours , though this summer not as rainy.
Males only call during rainy season and if it rains during the rest of the year . Unlike inside they do not call daily and rarely call after Oct to May.
They breed every year but I scoop the eggs out , I don't want to bother raising all those tadpoles plus the water section isn't for that .
The water bin is 14 inches long , 6 inches wide and if I was going to do it again would go bigger but not more than half the enclosure . As you know they mostly stay near water edge .
They seem to prefer being outside but they are no longer "tame" and if you open the screen top they go ballistic , jump in the water or head for the grass area and they will show the belly which they never did inside.
When they were inside they were much tamer .
You can't let the grass, weeds, etc take over because the toads aren't the best hunters so I pull them out as needed. I feed them crickets and mealworms.
I clean it by just pouring clean water in their water bin , over flowing it and that's it , again it has no bottom so the water runs through and their waste feeds the plants .
Their green colors are the same indoors or outdoors but their bellies are way brighter .
If you don't have Bombinas yet I would suggest western green toads.
A friend keeps Western green toads outside and their green colors are amazing compared to when they were inside . She had them outside during that cold spell which wiped out many of the iguanas years ago and they did great .
They buried and emerged a month later .