Characteristics may further be described as being interspecific, intraspecific, and conspecific. Arguments ranged from the species being conspecific, subspecific or as individual species. For information on conspecific nest parasitism and egg discrimination in soras see. Contrastingly, the zooplankton feeders form large conspecific groups. All the subspecies, varieties, and cultivars are conspecific and interfertile. Most taxonomic authorities consider the species cosmopolitan and conspecific. Males exhibit aggressive behaviors against conspecific males near the boundaries of their territories. It includes vocalizations that are used for conspecific communication in some cases. In the laboratory, cattle can be trained to recognise conspecific individuals using olfaction only. The American Ornithological Society keeps all four species conspecific. Juvenile blue tangs exhibit different behavior than both conspecific and congeneric adults. Also, wild dingo populations might have had demographic support from conspecific living with humans. Sometimes, songs vocalized in the post-breeding season act as a cue to conspecific eavesdroppers. Some fish see the decoy as prey, while others see a conspecific. Pack is a social group of conspecific canids.