The mass exodus was probably little Western Toad toadlets. Bufo boreas. http://en.wikipedia.org/wiki/Western_toad . The young leave their ponds all together probably because they are relatively more safe from predators traveling in numbers. Just in case you were interested. I met Instigate (a friend of a coworker) last week – very much fun to find that the world was that small! I have been enjoying your blog.
The mass exodus was probably little Western Toad toadlets. Bufo boreas. http://en.wikipedia.org/wiki/Western_toad . The young leave their ponds all together probably because they are relatively more safe from predators traveling in numbers. Just in case you were interested. I met Instigate (a friend of a coworker) last week – very much fun to find that the world was that small! I have been enjoying your blog.