The Big Dark Brown Parrots

The big dark brown parrots yellow tailed black cockatoos
The birds that are known to some as the weerloos
I do hear and see them often though not every day
Their voices and appearance to their identity a give away
Among the largest members of the cockatoo family
The females lay one to two white eggs in hole high in trunk of tree
But only one of the young to adulthood survive
In Nature the weak have to die for the strong for to thrive
From once seen to recognize them again one ought not to fail
Big dark brown birds with yellow tips on their wings and yellow tips on their tail
As they fly in small flocks you hear them call out wee yu
Like most species of birds to their ways they are true
They live on grubs and the tiny dark seeds of hakea and pine
And they look very beautiful when seen in the sunshine.