The plural form of the noun 'swallow' is swallows.
Examples:
Some swallows had built their nests under the overhang of the barn.
He finished off his cup of tea in two swallows.
The word 'swallow' is also a verb: swallow, swallows, swallowing, swallowed.
The past tense of "swallow" is "swallowed."
The sound a swallow makes is called a chirp or a twitter. Swallows are known for their distinctive calls and vocalizations.
The sound that a swallow makes is typically called a "chirp" or a "twitter." These birds are known for their high-pitched, rapid vocalizations.
There are many ways to spell the "ooh" sound. You can spell it oh, or uh. This depends on exactly what sound it is making.
a swallow twitters on the web
Sound of electricity
Well, there are 83 species of swallow in the world, and the ones I know all sound a little different, but warbling and twittering are two words you can use.
A howling sound
well sound i out "occurs" but you spell it occurs
peacock sound is called scream
bang
Arggh