Cobalt-rumped Parrotlet

Identification

The cobalt-rumped parrotlet, also known as the blue-winged parrotlet, is a small parrot species within the genus Forpus. Two subspecies are recognized: Salvadori's cobalt-rumped parrotlet (F. x. flavescens) and Hellmayr's cobalt-rumped parrotlet (F. x. flavissimus). The species is distinguished by its characteristic cobalt-blue coloring on the rump, which gives it its common name.

Range & Habitat

Cobalt-rumped parrotlets inhabit much of central and northern South America, with their range divided between the two subspecies. They are generally common and widespread, though more localized in the Amazon Basin. These birds are lowland specialists, never occurring above 1,200 metres elevation. They favor open and semi-open habitats, including dry and riparian woodlands, cerrado, caatinga, palm groves, semi-arid scrubland, savanna, and pastures, actively avoiding densely forested areas.

While generally non-migratory, populations show interesting movement patterns: Argentine birds move locally according to the flowering seasons of key food plants, and Brazilian Atlantic Forest populations undertake altitudinal migrations.

Behaviour & Diet

These highly social and gregarious birds form flocks typically numbering around 20 individuals, though gatherings can exceed 50 birds at productive fruiting trees or seeding grasses. Feeding groups are usually smaller, comprising 2 to 12 birds. Their vocalizations are distinctive: high-pitched "sheet" or "zeet" screeches while flying or perched, with additional twittering and chattering sounds when feeding and socializing in larger assemblies.

The cobalt-rumped parrotlet feeds primarily on fruits from Cecropia and Ficus species, seeds from Mikania and Trema micrantha, and flowers from Ambrosia, Handroanthus serratifolius, and Marcgravia species. Breeding occurs mainly between May and August, with females laying 3–7 small white eggs. Intriguingly, birds have been observed scraping clay nests built by rufous horneros, possibly to assess mineral content or nest suitability, and subsequently using these nests for raising broods.

Best Time & Places to See It

Cobalt-rumped parrotlets are best observed in open lowland habitats across central and northern South America, particularly in areas with scattered woodlands, palm groves, and savanna. Their stable population and lack of serious threats from deforestation or the pet trade mean many populations occur within protected areas. Timing visits to coincide with flowering and fruiting seasons of key food plants increases the likelihood of encountering larger, more active flocks.

Photography Tips

Photograph these small, active parrots in open habitat where they can be observed in flight or perched on fruiting trees and flowering plants. Early morning visits when birds are most active offer the best opportunities. Their gregarious nature means patient observation of feeding flocks can yield dynamic shots of multiple individuals. The distinctive cobalt-blue rump coloring is best captured in good natural light; position yourself to photograph birds in silhouette against bright sky or with side-lighting to emphasize their coloration. Their high-pitched calls often alert photographers to their presence before visual contact.