Do you know, the exact design
Of spikes and wires atop street-signs
And the sort, are to stop
Pigeons ******* on the top?

And yet, just the other day,
A mother pigeon - as if to say
"*******!" to the local street -
Had made her nest up, nice and neat,

Above the very spikes they laid
To stop the nest from being made.
And as I passed, I thought aloud,
"'At-a-girl! She should be proud!"