Trap	February 23	March 16	April 8
1	under snow	under snow	under snow
2	exposed	under snow	under snow
3	exposed	under snow	under snow
4	exposed	under snow	under snow
5	under snow	under snow	under snow
7	under snow	under snow	under snow
8	under snow	under snow	under snow
9	exposed	exposed	under snow
10	exposed	under snow	under snow