colourful things to eat for animals?

[imported_Kaschia]

Hi, so i am currently writting this childrens book for my EPQ, and I am struggeling to come up with colourful thins to be eaten. I will just post a passage of the book i am writting, can you please fill in the appropriate foods where i put ###?
Thank you
Kaschia

First Hana went to the greenest green frog she knew and asked it how he became so green.
‘I eat lots of green leaves’ answered the green frog.

Then Hana went to the bluest blue fish she knew and asked it how she became so blue.
‘I drink lots of blue water’ answered the blue fish.

Then Hana went to the reddest red bird she knew and asked it how she became so red.
‘I eat red berries’ answered the red bird.

Then Hana went to the yellowest yellow duck she knew and asked it how she became so yellow.
‘I ###‘ answered the yellow duck.

Then Hana went to the pinkest pink pig she knew and asked it how she became so pink.
‘I ###‘ answered the pink pig.

Then Hana went to the whitest white sheep she knew and asked it how she became so white.
‘I ###‘ answered the white sheep.

Then Hana went to the blackest black cat she knew and asked it how she became so black.
‘I ###‘ answered the black cat.

Then Hana went to the greyest grey mouse she knew and asked it how she became so grey.
‘I ###‘answered the grey mouse.