paul katinas
Well-known member
- Post score: 10
- #1
Hi Folks,
Observed this cute Grebe ingesting its feathers.
Here's the reason why their feathers are on the menu.
Audubon Website:
Grebes evolved to use their feathers as a way to slow down digestion.
After the bird swallows them, the feathers enter a three-part stomach — first a storage chamber, then a gizzard, and lastly a pouch.
The feathers form dense balls slowing the passage of food long enough that the food can be safely liquified.
The tough bits are then regurgitated within a ball of feathers, much the way Owls spit up pellets of bones from their prey.
Happy trails.
Observed this cute Grebe ingesting its feathers.
Here's the reason why their feathers are on the menu.
Audubon Website:
Grebes evolved to use their feathers as a way to slow down digestion.
After the bird swallows them, the feathers enter a three-part stomach — first a storage chamber, then a gizzard, and lastly a pouch.
The feathers form dense balls slowing the passage of food long enough that the food can be safely liquified.
The tough bits are then regurgitated within a ball of feathers, much the way Owls spit up pellets of bones from their prey.
Happy trails.
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