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Actullay,they do,they don't make any sound,they just open there beaks/bills wide.
but why is the question
Repetetive yawning in birds (most notably Cockatiels) means they are trying to clear their sinuses. Dust, dander, and little pieces of feather or down can get lodged in the sinus cavities, and a bird will yawn to try and clear the passage.
A single yawn however, is just a yawn.
Kris
Birdiemovers
What else can I help you with?
Does a snail yawn?
yes they yawn quietly
What is the past participle of yawn?
"Yawned"; "yawn" is a regular verb.
Is yawn an adjective?
The word 'yawn' is both a verb (yawn, yawns, yawning, yawned) and a noun (yawn, yawns). Examples:Verb: I began to yawn in the middle of the lecture.Noun: The comedian's joke met with a big yawn.An adjective is a word that describes a noun, for example: a big yawn.
Why to we yawn when someone else is yawn?
Yawning is contagious.
Are humans the only ones that yawn?
No, dogs do yawn too. I hope some other animals also yawn.
Why do mammals yawn?
Lack of oxygen to the brain causes an involuntary reaction that we know as a yawn.
What is a homophone for yawn?
the homophone for yawn is.............you! haha get it lol
Can cows yawn?
No whales do not yawn.
Is yawn an onomatopoeia?
Yes, yawn is an onomatopoeia.
Does a snail yawn?
yes they yawn quietly
What is the past participle of yawn?
"Yawned"; "yawn" is a regular verb.
How do you spell the sound a yawn makes?
The typical written expression for a yawn sound is "ho hum."
Can you give a sentence for the word yawn?
Insects do not yawn. People necessarily do not yawn only when they are tired. Most people, after reading this, will yawn.
Why do people yawn when they are cold?
A yawn is normally a response to a change in activity, although if you did not get enough sleep, you could become tired and yawn.
Is yawn an adjective?
The word 'yawn' is both a verb (yawn, yawns, yawning, yawned) and a noun (yawn, yawns). Examples:Verb: I began to yawn in the middle of the lecture.Noun: The comedian's joke met with a big yawn.An adjective is a word that describes a noun, for example: a big yawn.
Why to we yawn when someone else is yawn?
Yawning is contagious.
YAWN IN FRENCH is dinner?
to yawn is 'bailler' in French.
