Bald-faced hornet Bald-faced hornet Dolichovespula maculata is a eusocial wasp of the cosmopolitan family Vespidae. Its colloquial names include the bald-faced hornet, bald hornet, white-faced hornet, white-tailed hornet, spruce wasp, blackjacket, and bull wasp. This species is a yellowjacket wasp, not a true hornet (genus "Vespa"). Colonies contain 400 to 700 workers, the largest recorded colony size in its genus, "Dolichovespula". It builds a characteristic large hanging paper nest up to 58 centimetres (23 in) in length. Workers aggressively defend their nest by repeatedly stinging invaders. "Dolichovespula maculata" is distributed throughout the United States and southern Canada, but is most common in
Bald Island area and taken to Bald Island. In 1993 the area was surveyed to show that at least two had survived. In 1993 another three males and three females have been relocated to Bald Island. The estimated population of calling male birds on Bald Island in 2004 is 59 individuals. Bald Island Bald Island is an island that is located in the Great Southern region of Western Australia. The island is offshore from Cheynes Beach and is a protected area managed by the Department of Parks and Wildlife. The island is a World Conservation Union Category IA nature reserve. (A Class