. . . . . . . . . "Bombus terricola" . . "Vicia cracca" . . "Mike V.A. Burrell. 2017. Bombus terricola nectar plant Vicia cracca. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/7122418> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .