Priorities include: (1) Document changes in morphological variation that may occur from nonassortative mating of progeny of the mixed population of 7 different subspecies released in e. North America during reintroduction.
(2) Continue to monitor Peregrine distribution and abundance as reintroduced or recovering populations increase, to help determine carrying capacity now, as environments have changed in several decades since the population decline (see also Abbitt and Scott 2001).
(3) Study frequency of breeder dispersal in different regional populations and its influence on estimates of adult survival and on population dynamics. Further study of natal dispersal would be useful; are some populations sources and others sinks? As telemetry techniques are refined, use of these to provide more extensive data on wintering locations of given breeding populations is important.
(4) Perform more removal experiments to determine whether male and female replacements differ between poor- and high-quality territories (see Johnstone 1998).
(5) Assess changes in reproduction, age of first breeding, and survival of prebreeders and breeders in relation to increased population density and saturation of nesting habitat.