Bald-faced hornet from mid-April to early October, and reproductives were produced from mid-July through the end of November. Onset of male output usually precedes that of queen output in social wasps, however here "D. maculata" is an exception to this trend. Energy investment by workers required to produce reproductives is considerable. Newly emerged males and queens are no more functional than pupae; both depend heavily on solid prey brought in by workers, thus competing with larvae for food resources. As a result, worker quantity must remain high in order to maintain reproductive output. Workers must maintain food stores and defend the nest,
Decorah Bald Eagles and tail) develops when bald eagles are sexually mature, between 4 and 5 years of age. The species is placed in the genus "Haliaeetus" (sea eagles) which gets both its common and scientific names from the distinctive appearance of the adult's head. "Bald" in the English name is derived from the word "piebald", meaning "white headed". The Decorah Mom is younger than Dad, and is easily differentiated by her "eyeshadow" and darker feathers interspersed with the white ones on her head and tail. Dad has a fully white head and tail and is noticeably smaller than Mom; male bald eagles