Population viability analysis (PVA) is a powerful conservation tool, but it remains impractical for many species, particularly species with multiple, broadly distributed populations for which collecting suitable data can be challenging. A recently developed method of multiple‐population viability analysis (MPVA), however, addresses many limitations of traditional PVA. We built on previous development of MPVA for Lahontan cutth...

Population viability analysis ( PVA ) uses concepts from theoretical ecology to provide a powerful tool for quantitative estimates of population dynamics and extinction risks. However, conventional statistical PVA requires long‐term data from every population of interest, whereas many species of concern exist in multiple isolated populations that are only monitored occasionally. We present a hierarchical multi‐population viabi...

Using radiotelemetry, we discovered that the Three‐wattled Bellbird ( Procnias tricarunculata ), one of Central America's largest frugivorous birds, has the most complex migratory pattern yet recorded for a tropical species. The annual migration cycle included 2‐ to 5‐month stopovers in four distinct life zones: two middle‐elevation and two lowland sites separated by as much as 200 km. We captured and radio‐tagged bellbirds du...