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bird sex involves bird penis in female cloaca with a release of sperm to fertilize the eggs internally. bird eggs can be either fertilized or not but only fertilized eggs will develop and hatch.
SO BISEXUAL FUCKING SWANS
PENGUINS
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bird sex involves bird penis in female cloaca with a release of sperm to fertilize the eggs internally. bird eggs can be either fertilized or not but only fertilized eggs will develop and hatch.
SO BISEXUAL FUCKING SWANS
PENGUINS