Bees have tongues of various lengths that help determine which flowers they can obtain nectar and pollen from.
Wondering if those are bees or flies on your flowers?
Sometimes it's hard to tell whether the insects you're seeing on your blooms are bees, wasps or flies. One quick way to tell the difference is that bees and wasps at rest fold their wings close to their bodies, while flies hold theirs in a V-shape, like a stealth bomber. Also, bees and wasps have two sets of wings (flies have one); and bees and wasps have antennae (flies - nope.)