13.
a friendly bird whose calls sound like gunfire
16.
has a 9 billion population
22.
another word for the prior animal
26.
also has a shell but doesn't swim
27.
an amphibian with lumps
28.
another amphibian but no lumps
29.
has a shell and leaves a slimy trail
30.
the previous animal but without the shell
31.
lives in the dirt, prey of birds
