Willy Wags His Tail

On the fence post willy wagtail wags his tail about
Then from his perch he suddenly flies out
To snatch a flying insect passing by
A fly, mosquito, bee or butterfly
Willy in his coat of black and white
In the town park is a familiar sight
And though not the finest songster of the Spring
You recognize him by the song he sing
His borders he aggressively does mark
He tries to chase the bigger magpie from the park
But the magpie who on Willy's kind is known to prey
Does not seem scared of him in any way
On the fence post or on branch of tree or ground
The willy wagtail wags his tail around.