The wood frogs are spawning now. I caught these two in amplexus.
Wood frogs are the first frogs to come out. This is the species that freezes in the winter and comes out fine as soon as it starts to thaw a bit. They have blood that acts as sort of an anti-freeze agent that prevents the tissue from being damaged.
They can lay eggs in frigid water, and the tadpoles will be fine.
Winter is slowly fading from us. The wood frogs are the first sign.