A Bird outside my Window

I saw a bird bathed in wondrous light
For me that time a beautiful sight
It sat on the branch, so still it's gaze
With our human noise and haze, he perched and didn't faze
Then so lightly it jumped from branch to twig
A constant movement from stem to sprig
With fluttering wings it's mate arrived then
With only brown, the smaller hen
The two tweeped a magic sound
It was marvelous the sweet sounds they found
Then something arrived, it made me jarr
I changed my mind and wished them afar
As they'd just crapped apon my car