Brilliant, diverse colour ornaments of birds were one of the crucial cues that led Darwin to
the idea of sexual selection. Although avian colouration plays many functions, including …

Habitat colour gradients characterise urban areas: from green prevailing in the least
urbanised areas dominated by lawn, shrubs and trees, to grey characteristic of heavily …

With novel human–wildlife interaction, predation regimes, and environmental conditions, in
addition to often fragmented and smaller populations, urban areas present wildlife with …

Leucism, broadly defined as the lack of melanin pigmentation, occurs in many animal
species. Most studies on leucism and other colour aberrations are based on opportunistic …

Urbanization is rapidly altering landscapes worldwide, changing environmental conditions,
and creating novel selection pressures for many organisms. Local environmental conditions …

Simple Summary Congenital malformations can lead to embryonic mortality in many
species, and sea turtles are no exception. Genetic and/or environmental alterations occur …

Birds with plumage colour aberrations are of interest to both the general public and
scientists. However, due to their rarity in nature, information on the presence of colour …

In 2017, one pair of Oriental reed warblers (Acrocephalus orientalis) with color aberrations
was found in Yongnianwa National Wetland Park, Hebei, China. The female bird exhibited …

Despite being the most abundant sea turtle in the world, the olive ridley turtle Lepidochelys
olivacea is classified as Vulnerable by the IUCN. There is evidence of congenital …

Birds are known for their brilliant colors and extraordinary patterns. Sightings of individuals
with atypical plumage often cause considerable excitement in the birding public, but receive …