A 600mm lens lets me not bother the critters as much, since I don't have to get as close. This squirrel was blissfully unaware of me.
Canon EOS 2000D with Sigma 60-600mm F4.5-6.3 DG OS HSM lens
Came out from under the boardwalk to look at me. I snapped a picture before poof. Gone.
Canon EOS 2000D with Sigma 60-600mm F4.5-6.3 DG OS HSM lens
This one was probably still on territory in mid-august (expected for this species), as he was still aggressive.