Pond Boss Forums FISH & FISHING Sunfish-Including Largemouth and Smallmouth Bass Sexing Redear Sunfish?

Thanks. I can sex RES in spring prior to breeding season at a glance by keying in characters you point out. When breeding commences the males get a smokey to black look (some get really black). After breeding season till about now sexing the RES is tougher as they are thinner and yellows less evident on females. As fall progresses they plump up and get the yellows back.