Results 101 to 110 of about 856 (183)
First record of leucism in brown pelicans (Pelecanus occidentalis) in Costa Rica
, 2021 Leucism in birds is rarely observed in the Pelecaniformes order and has not been recorded for the brown pelican (Pelecanus occidentalis) in Costa Rica. We describe an observation of a leucistic brown pelican with white plumage, pink coloration on the bill and feet, but normal color on the eyes.
Vargas-Masís, Roberto +1 more
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Citation: 'leucism' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.10888 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
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Partial and complete leucism in two Abrothrix species (Rodentia: Cricetidae) from central Chile
Mammalia, 2018 Abstract Rodents with leucism (a hypopigmentary congenital disorder) in the Neotropical region are rarely recorded. During field surveys in central Chile, we found in commercial Monterrey pine plantations a specimen of Abrothrix longipilis and a specimen of Abrothrix olivaceus with partial leucism. Another A. olivaceus exhibited complete
André V. Rubio, Javier A. Simonetti
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Brazilian Journal of Biology, 2013 Anomalous colourations occur in many tropical vertebrates. However, they are considered rare in wild populations, with very few records for the majority of animal taxa. We report two new cases of anomalous colouration in mammals.
MSL. Abreu +4 more
doaj
ADDITIONAL RECORDS OF ABERRANT PLUMAGE COLORATION OF THE GROOVE-BILLED ANI (CROTOPHAGA SULCIROSTRIS) [PDF]
, 2018 · Chromatic aberrations have previously been reported for the normally entirely black Groove-billed Ani (Crotophaga sulcirostris). Here, we present three additional observations of the occurrence of chromatic aberrations in this species, in the southwest
Cabrera, Joselin Viviana +1 more
core
HIGH INCIDENCE OF COLOR ABERRATIONS IN THE PLAIN-FLANKED RAIL (RALLUS WETMOREI) [PDF]
, 2016 No ...
Lentino, Miguel +2 more
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Primer reporte de una anomalía del color en una comadreja overa Didelphis albiventris Lund, 1840, en un área urbana de Mendoza, Argentina [PDF]
Instances of color alterations in the marsupial Didelphis albiventris have been scarcely documented. Urban environments provide good opportunities to study synanthropic nocturnal animals like opossums. In a neighborhood of Mendoza, Argentina, a female D.
Morales, Melisa E., Superina, Mariella
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Partial leucism in the Clay-colored Thrush (Turdus grayi) in La Selva Biological Station, Costa Rica
Huitzil, 2018 Pigmentary abnormalities in birds are rare in the wild but common in environments modified by anthropogenic impact. We report a case of partial leucism in the Clay-colored Thrush (Turdus grayi) from La Selva Biological Station, Costa Rica.
José Manuel Mora, Lucía I. López
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First record of leucism for the Toco Toucan, Ramphastos toco (Piciformes: Ramphastidae) [PDF]
Brazilian Journal of Biology, 2020 Eduardo Guimarães Santos +1 more
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The European Zoological JournalLeucism is a colour aberration that results from a lack of melanin and alteration in the development or distribution of chromophores. The study records for the first time the occurrence of leucistic larvae of Arabian toad (Sclerophrys arabica) in AlUla ...
R. M. Alansari +3 more
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