In migrant Levant Sparrowhawk (Accipiter brevipes) at Eilat, Israel, we noted that juvenile males had two different morphs – the one described to date in literature; and a second, previously undescribed morph, with femalelike barring on the chest and flanks interspersed with tear-shaped elongated spots, giving an overall female-like appearance. Here we forward the hypothesis that explain the evolutionary consequences for the female-like plumage of juvenile males as that of intra-specific sex mimicry developed to avoid intra-specific predation by the larger females
Factors affecting the evolution of plumage conspicuousness in females are nowadays the focus of deba...
Color patterns, such as bars or dots that cover the body surface of animals are generally thought to...
The role of polymorphism in bird plumage has been debated. One theory is that prey species become fa...
In migrant Levant Sparrowhawk (Accipiter brevipes) at Eilat, Israel, we noted that juvenile males ha...
In migrant Levant Sparrowhawk (Accipiter brevipes) at Eilat, Israel, we noted that juvenile males ha...
Permanent female mimicry, in which adult males express a female phenotype, is known only from two bi...
The pied plumage of the adult Black Sparrowhawk is rather exceptional in the genus Accipiter and it ...
A commonly held principle in visual ecology is that communication compromises camouflage: while visu...
A fundamental principle of Batesian mimicry is that it pays to look like a local harmful species tha...
Manakins (Pipridae) are neotropical birds that usually exhibit delayed plumage maturation (DPM). Thu...
Female mimics are known from many species, but permanent, non-conditional, alternative mating strate...
Sexually dichromatic birds often show delayed plumage maturation, but second-year (SY) males may or ...
Colour patterns, such as bars or dots, that cover the body surface of animals are generally thought ...
Patterns, such as bars and spots, are common in birds. Some patterns can function in camouflage and/...
Examples of mimicry among birds are rare worldwide and the Neotropics are no exception. Five cases o...
Factors affecting the evolution of plumage conspicuousness in females are nowadays the focus of deba...
Color patterns, such as bars or dots that cover the body surface of animals are generally thought to...
The role of polymorphism in bird plumage has been debated. One theory is that prey species become fa...
In migrant Levant Sparrowhawk (Accipiter brevipes) at Eilat, Israel, we noted that juvenile males ha...
In migrant Levant Sparrowhawk (Accipiter brevipes) at Eilat, Israel, we noted that juvenile males ha...
Permanent female mimicry, in which adult males express a female phenotype, is known only from two bi...
The pied plumage of the adult Black Sparrowhawk is rather exceptional in the genus Accipiter and it ...
A commonly held principle in visual ecology is that communication compromises camouflage: while visu...
A fundamental principle of Batesian mimicry is that it pays to look like a local harmful species tha...
Manakins (Pipridae) are neotropical birds that usually exhibit delayed plumage maturation (DPM). Thu...
Female mimics are known from many species, but permanent, non-conditional, alternative mating strate...
Sexually dichromatic birds often show delayed plumage maturation, but second-year (SY) males may or ...
Colour patterns, such as bars or dots, that cover the body surface of animals are generally thought ...
Patterns, such as bars and spots, are common in birds. Some patterns can function in camouflage and/...
Examples of mimicry among birds are rare worldwide and the Neotropics are no exception. Five cases o...
Factors affecting the evolution of plumage conspicuousness in females are nowadays the focus of deba...
Color patterns, such as bars or dots that cover the body surface of animals are generally thought to...
The role of polymorphism in bird plumage has been debated. One theory is that prey species become fa...