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Subtle sexual plumage color dimorphism and size dimorphism in a South American colonial breeder, the Monk Parakeet (Myiopsitta monachus)
(BioMed Central Ltd., 2020-06)
Parrots (Psittacidae Family) are one of the most colorful groups of birds in the world, their colors produced both structurally and via unusual pigments (psittacofulvins). Most species are considered to be monogamous, and ...
SEXUAL DIMORPHISM AND PARENTAL ROLES IN THE THORN-TAILED RAYADITO (FURNARIIDAE)
(2007)
Sexual dimorphism, mating system, and parental care are known for only
a few species of the large passerine family Furnariidae. We conducted a study of sexual
dimorphism in morphology, coloration, and parental roles ...
Blue males and green females: sexual dichromatism in the Blue Dacnis (Dacnis cayana) and the Swallow Tanager (tersina viridis)Machos azules y hembras verdes: dicromatismo sexual en el Saí Azul (Dacnis cayana) y la Tersina (Tersina viridis)
(Neotropical Ornithological Society, 2008-08)
Las diferencias entre sexos en la coloración del plumaje, conocidas como dicromatismo sexual, son un fenómeno común entre los fruteros Neotropicales (familia: Thraupidae). En muchas especies de este grupo, el dicromatismo ...
Coloración del plumaje en ejemplares de museo de Golondrina Ceja Blanca (Tachycineta leucorrhoa)Plumage coloration in museum specimens of white-rumped swallow (Tachycineta leucorrhoa)
(Asociación Ornitológica del Plata, 2018-08)
El género Tachycineta incluye nueve especies de golondrinas distribuidas a lo largode América con grandes diferencias en su sistema de apareamiento genético y en sus tasas depaternidad extra-pareja. En un estudio previo ...
Body Size and Sexual Dimorphism in the Southernmost Subspecies of the Burrowing Owl (Athene cunicularia cunicularia)
(Raptor Research Foundation, 2015-12)
We studied body size and sexual dimorphism in the southernmost subspecies of the Burrowing Owl (Athene cunicularia cunicularia) at the Pampas of Argentina, and we compared our data with those from other subspecies in the ...
Characterization of the sexual dimorphism in oilbirds (Steatornis caripensis)
The extent to which males and females of monomorphic species differ from each other is still an ecological and evolutionary puzzle. In these species it has been proposed that slight differences in selection pressures can ...
Morphometric Differences between Sexes in the White-Faced Ibis (Plegadis chihi)Diferencias morfométricas entre sexos en la cara blanca Ibis (Plegadis chihi)
(Wilson Ornithological Society, 2017-06)
Sexual dimorphism in birds may express itself as differences in body size, plumage, color and/or behavior. Many species are monomorphic in color, which makes sex determination difficult in the field. In order to develop a ...
Do morphometric measurements allow sex discrimination in Mockingbirds (Mimus sp)?
(Society for the Improvement of Science, 2016-10)
Sexual dimorphism in birds may be expressed as differences in body size, plumage, color and/or behavior. Many species are monomorphic in color, making sex determination difficult in the field. An example of the latter are ...