Common Flowering Quince (Chaenomeles japonica) is now in full bloom, providing needed nectar to early pollinators, as you may infer from this image taken yesterday:
It’s one of three species of flowering quince plants that originated in Asia and is highly regarded in Japan for bonsai culturing.
The flowering varieties are not to be confused with the fruit-bearing Quince Tree (Cydonia oblonga). (Brooklin, Maine) See another image in the first Comment space.