Many bird species incorporate anthropogenic materials (eg sweet wrappers, cigarette butts
and plastic strings) into their nests. Anthropogenic materials have become widely available …

Background The origin of powered avian flight was a locomotor innovation that expanded
the ecological potential of maniraptoran dinosaurs, leading to remarkable variation in …

Sex-bias in breeding dispersal is considered the norm in many taxa, and the magnitude and
direction of such sex-bias is expected to correlate with the social mating system. We used …

Nests are essential constructions that determine fitness, yet their structure can vary
substantially across bird species. While there is evidence supporting a link between nest …

Environmental and/or climate changes, occurring at a global or local scale, can significantly
impact the diets, health, and population dynamics of waterbirds. This study aimed to develop …

The carrasco is a dense, shrubby vegetation type that covers the higher parts of table-top
mountains in north-eastern Brazil. The vegetation of this phytophysiognomy is often …

Parasitic infections have the potential to impact the hosts' body condition, elevate
physiological responses, and ultimately lead to increased mortality. Host-parasite …

Shorebirds are iconic examples of food resource partitioning through use of contrasted
morphological structures to acquire food. Differences in beak lengths and shapes allow …

Hoatzin, a unique species endemic to Neotropics, has puzzled avian systematists since it
was described 244 years ago. Despite its enigmatic origin and unparalleled life cycle …