On Gray Butcherbirds

Once heard and once seen one cannot get them wrong
Gray butcherbirds known by their bubbling song
The male with dark brown head than the female more brown than gray
They live in the woods from where i live far away
On their breeding Season humans walking or jogging in their territory they are known to attack
In courage the gray butcherbirds do not lack
With hook on tip of their upper beak they hang their small prey
On thorn or tree spike their name came to them in this way
I know of the danger posed by breeding butcherbirds going back twenty years or so
One can say that this is a long time ago
I was attacked by a breeding male butcherbird who brought blood to my head
Though the wound was not serious them i have cause for to dread
Small dove sized gray to brown birds that in their range are well known
Gray butcherbirds they do have ways of their own.