Its Just Their Nature. But Usually Its a Warning/Alert Call For "Un-Expected Intruder" Or They Just "Sing" On a Beatiful Day.
Birds make a variety of sounds.To hear the songs of all bird species, go to www.birds.cornell.edu and click on All About Birds. There you will find what you are looking for.
chirrup, chirp, twitter, tweet, sing, whistle
Accommodation
tweet tweet
It sounds very much like "cuckoo" stressed on the first syllable.
Birds. tweet tweet.
Birds. tweet tweet.
The chickadee! :-)
a birds tweet in palindrome is peep
Tweet Tweet http://twitter.com/markewade
they started when they invented the joke home tweet home
Birds make a variety of sounds.To hear the songs of all bird species, go to www.birds.cornell.edu and click on All About Birds. There you will find what you are looking for.
a squawk, tweet, ect...
A tweet is the sound some small birds make, like a budgie. A tweet is the name of a message sent from the Twitter system.
tweet means message!
Passerine birds are generally your smaller birds that perch on branches and sing songs by tweeting etc. Non-passerines are birds that do not perch and sing and tweet. For example, an eagle or an ostrich are both non-passerines as they do not chirp or tweet songs, where as things like sparrows and most birds you find in your backyard do tweet all day and perch. These are your passerines.
Birds twitter and tweet.