Hello and thanks for any help. Assume this has been discussed before but dont know what words to use to search for it. Have 1966 Cherokee 140 outside tie-down and have open space at bottom of engine (photo attached). Birds are getting in and vbuilding nests. Put temporary plastic panel in and take off before flight but pain in the neck. Can I put a screen in? Am I missing a part? Bottom plug like a cowl plug? THnaks for any help.
