Both links have pictures of the coyote aboard the train.
http://www.tri-met.org/pressrel/prfeb0203.htm
PORTLAND - An unexpected rider was spotted on Tri-Met's Airport MAX Red
Line on Wednesday, February 13 around 11:30AM. The small coyote boarded
at the Portland International Airport station. Port of Portland Airfield
Operations and Wildlife staff found the coyote and quickly released the
animal. Coyotes go out of their way to avoid humans and are more likely
to be afraid of people than vice versa. Tri-Met officials aren't sure if
[the coyote] had a valid transit fare.