Domestic chickens are members of an order, Aves, which has been the focus of a revolution
in our understanding of neuroanatomical, cognitive, and social complexity. At least some …

Chemosensory receptors are essential for the survival of organisms that range from bacteria
to mammals. Recent studies have shown that the numbers of functional chemosensory …

Procellariiform seabirds wander the world's oceans aided by olfactory abilities rivaling those
of any animal on earth. Over the past 15 years, I have been privileged to study the sensory …

Smell is a sensory modality that is rarely considered in birds, but evidence is mounting that
olfaction is an important aspect of avian behaviour and ecology. The uropygial gland …

Identification of family members plays a primary role in the evolution of social behaviours
such as nepotism, altruism and mate choice. The process is particularly important for …

Our natural body odor goes through several stages of age-dependent changes in chemical
composition as we grow older. Similar changes have been reported for several animal …

BIRDS EмIт мANҮ chemical compounds, though ornithologists rarely consider them. Avian
odors, for example, are readily detectable to humans in at least 17 avian orders and 80 …

Source–filter theory posits that an individual's size and vocal tract length are reflected in the
parameters of their calls. In species that mate assortatively, this could result in vocal …

This article is part of a Special Issue “Chemosignals and Reproduction”. Chemical cues
were probably the first cues ever used to communicate and are still ubiquitous among living …

Mate choice for major histocompatibility complex (MHC) compatibility has been found in
several taxa, although rarely in birds. MHC is a crucial component in adaptive immunity and …