parabolic - minimize noise from behind

["Kevin Lucas" kslbirder]

I would like to minimize noise from behind when recording with my parabolic
setup. Standing on a roadside and aiming off towards vocalizing birds, I
pick up a great amount of traffic sound. Would attaching some sound
dampening material to the back side of the dish help? It would be nice to
lessen the assault on my ears while I monitor the recording.

I have a homemade setup, using a Primo EM-172 capsule and a squirrel
baffle, and I use an Olympus LS-11 recorder. Not being able to leave the
roadside is non-negotiable in some places, due to private & native land
access restrictions that I respect. I use recordings to document rare birds=
.

Thanks for your advice,
Kevin Lucas