Man can be infected by pigeons or their dropbombs with these fancies:

Salmonellae.
Cryptococcosis.
Histoplasmosis.
Psittacosis.
Trichomoniasis (pigeon canker) - though I don't know if this can be infectous for humans as well.

Also:

Mites, some of which can be the carrier of their own deseases.

There is a reason, CCIP, why workers cleaning or killing places under the roofs of houses wear protectice breathing filters and all-body-covering protection overalls. You need to protect yourself against fungi, mites, and virusses entering your lung.

We call pigeons "flying rats" in German. I am not disgusted by them, but their presence has it's price. Some types of pigeons look beautiful, though. My great-grandfather (died in the early 70s) still was eating pigeons when he shot them in a rural place were he lived. After the war, many Germans did. Around 80% of pigeons you usually find in cities in the present are estimated to carry deseases that could infect humans as well.

Hate pigeons.

When I was 16 I shot one up the arse with my .22 air rifle as it was sitting on my parents roof.

Actually with a .22 air rifle they are a bugger to kill due to the plumage, I shot one right in the chest from about 10 metres and saw the pellet bounce off. It was then that I read in a gun magazine that you need a .177 to effectively kill pigeons as they are of a higher velocity even though the pellet is lighter.

Here guys...I found one http://imgcash3.imageshack.us/img412...uplargeon1.gif
http://img48.imageshack.us/img48/2158/wingedratph7.gif http://imgcash3.imageshack.us/img240...ointingqq8.gif