Contraceptives effective in curbing parakeet population, study finds

Super sniffer. A well-developed sense of smell may help the nocturnal kakapo find food in the dark. Photo:Don MertonHawks are famous for their sharp vision, and owls are renowned for their keen hearing, but birds rarely get much credit for their sense of smell. That may change thanks to the first analysis of olfactory genes in a wide range of avian species. Birds, it turns out, may be better smellers than we thought.
Researchers interested in bird behavior have tended to focus on their flashy mating displays, melodious songs, and other talents, leaving the avian sense of smell largely unexplored. A handful of studies have hinted that smell does play a role in bird behavior (ScienceNOW, 29 October 2004), but very little is known about the underlying biology.
While male kakapo "boom" for a mate every year, females breed when there is an abundant food supply, a likely occurrence this year. Photo Gideon Climo. The booming of the male kakapo this breeding season is likely to be followed by an unprecedented population boom, with experts predicting a 50% increase in the population of the critically endangered bird species.
Nanday Conures or Black-hooded Parakeets (Nandayus nenday)Black-hooded Parakeets have arrived in Lakeland. This photo, which was shot recently in The Ledger parking lot by staff photographer David Mills, is the first evidence of this species presence in Polk County in many years. There are established colonies of these exotic birds in St. Petersburg and elsewhere in Florida.