Although it hardly feels like it, spring has supposedly arrived in Buffalo.

For the Buffalo Bills, that means turning the page forward as offseason workouts and the NFL draft move into focus.

Each team is allowed up to 30 pre-draft visits to their facility. The Bills hosted each of their top four draft selections last season (Sammy Watkins, Cyrus Kouandjio, Preston Brown and Ross Cockrell) on pre-draft visits. They did not host any quarterbacks, which is likely to change this spring.

Here is a look at the important dates on the Bills' calendar, which slows down in April:

April 6: Bills players' voluntary offseason workout program begins

Early April: Bills' preseason opponents released

Mid-to-late April: NFL regular-season schedule released

April 30-May 2: 2015 NFL draft