Parkinson hasn't seen more than two targets in a game since October 6th against the Packers. He should not be on any fantasy rosters with the Rams' wide receivers healthy.
Designated to practice last week, Higbee is now poised to actually return vs. the Bills. Sidelined since last season's Wild Card Round, Higbee has always commanded more targets than you would expect, but the Rams' offense has become a black hole behind target dominators Puka Nacua and Cooper Kupp. That being said, veteran Higbee is probably going to fare better than Colby Parkinson and Davis Allen, who both struggled mightily as pass catchers in Higbee's absence. Higbee will crack the top 30 for Week 14, but only just so.
Parkinson's fantasy value has dwindled in the weeks since Cooper Kupp and Puka Nacua have both been on the field healthy. The Rams utilize their wideouts first and foremost, and on a low passing-volume day, that led to one target for Parkinson. With Tyler Higbee's return on the horizon, Parkinson has shifted off fantasy radars.