Protecting plants from fresh bird poo

Hmm i never thought i would start a thread entitled that lol.

So ive been up the lottie and found out that an area i cleared last year has only a few clumps of grass and moss growing on it instead of thousands of nettles like everywhere else  

On closer inspection it appears to be the local pigeon toilet, as they fly from a neighbouring gardens trees they deposit their offerings to their allotment god (not in the hope of brassicas i hope as i wont be growing them ).  I dont really want to cloche/net the whole bed as its quite a large area but obviously im going to need to protect new plants and the soil. 

Has anyone had a similar issue?

Make a scarecrow with lots of tassley things that'll flap around in the wind.  See if that helps 

So it wont burn the plants?   

Ive been told the local pigeons will strip a brassica in days (first thing the site manager told me lol) but i wasnt planning on growing anything they would find edible (i hope) in that spot anyway. 

Pidgeon pie