Out on the moss the cuckoo’s favourite food is the hairy caterpillar. The gut of the cuckoo is so full of these caterpillars that it is like a furry purse. 
Out on the moss the cuckoo’s favourite food is the hairy caterpillar. The gut of the cuckoo is so full of these caterpillars that it is like a furry purse.
Robin A Crawford 