The ducklings are hatched from the first of April up to about the first of August.
We have a new brood of seventeen ducklings just hatched this afternoon.
Well, the three ducklings swam on, thinking how nice it was on the water, with the warm sun on their backs, when they suddenly came to the end of the pond.
Attempts to establish infections in candidate experimental hosts other than ducklings were not successful.
The tale of the ugly duckling (or the coming of age of second language acquisition research).
While some adult echinostomes were recovered from ducklings, very few hosts were infected and too few eggs were recovered from faeces to support further studies.
