Abstract
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 during 4 years between July and September in middle‐elevation forest fragments of the Pacific slope, 6 km from Monteverde in the Tilaran mountain range of north‐central Costa Rica. These habitats, which exist almost exclusively as small, isolated fragments on private farms, are poorly represented (