The Passenger Pigeon's genome may hold the answers to the true minimum population size necessary for a viable population. (reviverestore.org)
At minimum population, in the 1950s, it was largely restricted to Alaska, the Aleutian Islands, northern and eastern Canada, and Florida. (nps.gov)
From this population and based on a national prevalence of 27.8 % [13] and an accuracy of 5 %, a minimum population of 308 is required. (file.scirp.org)