Houstonist Flickr Photo of the Day - bird

Today’s Photo of the Day comes from flickr user and Houstonist photo contributor mlsnp.

Did you know that unlike most other birds, doves and pigeons produce crop milk? It's a highly nutritious substance that is secreted by a sloughing of fluid-filled cells from the lining of the crop. Both sexes produce this highly nutritious substance to feed to their young.

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