Newbie here! I generally hear about beards and muffs together in the same sentence. I know what bearded/muffed birds look like in general, but I have tried to look for an exact definition of each, and have come up emptyhanded. Can someone please tell me exactly what is a beard and what is a muff and what is the difference? Can there be a beard without a muff and vice versa? I want to not sound ignorant when I talk about my EEs on my blog as they grow up. I know they are developing beards/muffs, but I would like to sound knowledgeable. Thanks!