Bird Milk
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Scan day: 17 February 2014 UTC
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Description: Article describing how the young of some birds are fed on special secretions from their parents.
ike mammals, the young of some birds are fed on special secretions from a parent. Unlike mammals, however, both sexes produce it. The best known of these secretions is the "crop milk" that pigeons feed to squabs. The milk is produced by a sloughing of fluid-filled cells from the lining of the crop, a thin-walled, sac-like food-storage chamber that projects outward from the bottom of the esophagus. Crops are presumably a device for permitting birds to gather and store food rapidly, minimizing the time that they are exposed to predators. Crops tend to be especially well developed in pigeons and game birds.
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| Page title: | Bird Milk |
| Keywords: | Bird Milk crop milk |
| Description: | Bird Milk |
| IP-address: | 171.67.215.200 |