I use ONR for Bird Bombs. First , if I can I hose off as much as I can. If I can`t hose off, I saturate a MF with ONR Q-detail strength and place over BB to soften it. Leave it there for however long I can and then try to spray off as much as possible with a Kwazar sprayer double pump sprayer. Wipe and repeat as necessary.

Bugs, I use bug squash and first hose off then spray, then was with bug MF and rinse.