Forestry management can shape the structure of habitat types and have important biological
consequences on the composition of biodiversity. This study focused on Momotus lessonii …

Elongated tails are elaborate plumage traits possessed by a variety of bird species. Sexual
selection has long been the dominant hypothesis for explaining why certain species …

Both sexes of the turquoise-browed motmot, Eumomota superciliosa, display their long-
racketed tail in an exaggerated side-to-side wag display in two contexts. In the first, the wag …

Elaborate male and female plumage can be maintained by mutual sexual selection and
function as a mate-choice or status signal in both sexes. Both male and female Turquoise …

Both male and female peafowl grow crests on top of their head–iridescent blue in males, dull
iridescent green and brown in females–but the potential signal function of this plumage …

Feathers exhibit an extraordinary diversity of shapes, which are used by birds to accomplish
a diverse set of functions. Pennaceous feathers have a double branched morphology that …

The animal communication system has been an area of utmost curiosity and interest for us
for ages. We have often been interested to know if animals can use language like human …

We report for the first time the existence of a structural mechanism of feathers different from
iridescence that makes plumage conspicuous. By using electron and light microscopy, we …

The incorporation of an inedible object (prop) into a behavioral display is rare among birds.
Only four avian taxa have been reported to display with a prop, and in all studied species …

cefálicos, un componente crucial de la compleja cabeza de los vertebrados, no son
formados ni por la cresta ni por las plácodas. En este capítulo, se discutirá la evidencia que …