Common Blue It’s turned cooler so I get a chance to draw a male common blue before he becomes active. Birdsfoot trefoil is one of the foodplants of its larvae. There’s a hint of violet in the blue of its wings. Common blue females are brown. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Pinterest (Opens in new window) Pinterest Like this:Like Loading…