Why is my call duck huge

[ChickenQuailMom]

I bought 4 call ducklings, 3 are growing but ever so small as normal call ducks. But one is huge! Like 3 times their size!! Is this something that happens or did I get a regular duckling with my calls ducks?

 

[ShrekDawg]

Sounds like you may have got a regular duckling mixed in by accident.

 

[Miss Lydia]

I bought 4 call ducklings, 3 are growing but ever so small as normal call ducks. But one is huge! Like 3 times their size!! Is this something that happens or did I get a regular duckling with my calls ducks?

Pictures?