Can anyone help me with determine the breed on these chicks and ducklings ?

[tgpeters]

 

[popsicle]

Ducklings look to be Magpie.

Penguin chicks might be: Black Australorp (if pink feet), Black Jersey Giant (if yellow feet), or some other black breed.
Mostly black chicks might be same as above or Black Sex Links. Above chicks could also be the sex links, but I usually find they are darker chicks than other black breeds.

No way to tell what the white chick is.

 

[Lady of McCamley]

x2 (other than duckling...I've no idea on ducks).

Yellow chick may be a Buff Orpington.

Lady of McCamley

 

[BantamLover21]

Ducklings look to be Magpie.

Penguin chicks might be: Black Australorp (if pink feet), Black Jersey Giant (if yellow feet), or some other black breed.
Mostly black chicks might be same as above or Black Sex Links. Above chicks could also be the sex links, but I usually find they are darker chicks than other black breeds.

No way to tell what the white chick is.

Agreed.