They are persistent, staying on spawning beds even in relatively cold weather. Ron Lindner, Lindy Little Joe consultant, said largemouth bass spawning peaks by the first full moon in June, which this year falls on the 6th. Signs that the largemouth spawn is happening include dogwood fuzz on the line, active turtles and the scent of lilacs in the air. Male largemouths are extremely aggressive when they move into shallow, hard-bottom bays with warmer water. Emerging weeds may be present, but look for wood close by.
Females are almost uncatchable as they stage in deeper water near spawning beds.
They definitely aren't interested in your offerings when they move into the shallows to lay their eggs. When finished they retreat to deep water to recover before moving to pre-summer locations. The key to catching early-season largemouths is to focus on those feisty males early on. Move quickly and work likely spots with baitcasting gear and spinnerbaits. The longer males stay in spawning areas the harder they are to catch.