Bird Party

The birds are having a party;
They're gathering out back,
Although balloons and streamers
They most certainly do lack.

They line up on the patio
Then swoop from tree to tree,
Alighting on the branches
Where the leaves won't let me see.

There's such freedom in their flying
They look joyous in the air 
But for all I know, it's just a way
To get from here to there.