Bald-faced hornet to laying eggs while the workers take over all other necessary housekeeping tasks. At some point, sometime before the midpoint of colony life, the colony will begin to invest energy in producing reproductives as well. This marks the transition into the reproductive stage. There is an extensive time period where both workers and reproductives are raised. Production of both castes limits the size of the work force. However, an early switching time is highly adaptive for social wasp colonies in limiting the risk of total loss. In a sampling of 50 colonies taken in Maryland in 1977, workers were produced
Bald Hill (Australia) Bald Hill, which resulted in a coronial enquiry and the adoption of a management plan over Bald Hill in May 2003. Significant improvements to the management of hang gliding and paragliding activities have been undertaken since. Bald Hill (Lawrence Hargrave Memorial Park) is listed in the Wollongong Local Environment Plan as a heritage item of state significance. It is also listed in the Illawarra Regional Environmental Plan as a heritage item. The name is becoming rather a misnomer, for growth of weeds and grasses has become quite prevalent on its mid slopes from its base. There are toilet and carpark