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A bird's membrane, specifically the vocal membrane or labia, is tightened before air passes over it to produce sound. This tension alters the frequency of the vibrations, allowing the bird to create different pitches and tones in its calls. Proper tension is crucial for the modulation of sound, enabling birds to communicate effectively and attract mates or defend territories.
What else can I help you with?
Membrane direclty under shell in birds?
The membrane directly under the shell in birds is called the shell membrane. It is a thin, transparent layer that provides additional protection to the developing embryo within the egg. The shell membrane is located just beneath the hard outer shell and helps to prevent dehydration and protect the embryo from harmful bacteria.
What is an amnion?
An amnion is the innermost membrane of the fetal membranes of reptiles, birds and mammals.
Do birds mate before or after making a nest?
Birds mate after and before making a nest
Are birds eukaryotic?
Yes, birds are eukaryotic organisms. They have cells that contain a nucleus and other membrane-bound organelles. This distinguishes them from prokaryotic organisms, such as bacteria, which lack a defined nucleus.
How do birds see while flying in rain?
Birds have a protective membrane called a nictitating membrane that covers their eyes while flying in rain to help keep them moist and maintain visibility. Additionally, birds have specialized oil glands near their eyes that secrete oils to help repel water and maintain clarity of vision while flying in rainy conditions.
What came after the mammal but before caveman?
birds
When do birds start brooding behavior?
Birds start brooding behavior the day before hatching.
When you shoots birds they die before you cut their neck so can you cut the birds neck even after it's dead?
Dont shoot birds
How many birds did Romulus see the night before he killed his brother and why is it important?
he spotted 12 birds
Did dinosurs came before birds?
Definitely yes!
Can you fly with the birds?
Yes of course you can i have don it before
Do birds fly while sleeping?
No, they land before sleeping.
