| threats and control of the brown necked ravens (corvus ruficollis) in egypt. | the suez canal region is a small fertile area in egypt that is placed under enormous pressure of existing resources. in these areas, intensive agricultural practices are performed in combination with high population densities. the described problem is that together with agricultural practices and urbanization, brown necked ravens (corvus ruficollis) are in huge amounts attracted. the birds are very aggressive and showed to be a serious pest. they spread germs and diseases for human health and fo ... | 2007 | 18399444 |
| set a thief to catch a thief: brown-necked raven (corvus ruficollis) cooperatively kleptoparasitize egyptian vulture (neophron percnopterus). | our study describes how brown-necked ravens (corvus ruficollis) are able to take advantage of an ordinarily inaccessible, high-quality food source by relying upon their innovative and manipulative thinking capabilities to exploit methods used by egyptian vulture (neophron percnopterus) to overcome the problem. in five observed interactions, the ravens were first seen in the vicinity of an abandoned clutch of ostrich eggs (struthio camelus). the area was frequented by a pair of egyptian vultures ... | 2011 | 21409436 |
| body temperature regulation in the brown-necked raven (corvus corax ruficollis). ii. thermal changes in the plumage of ravens exposed to solar radiation. | | 1973 | 4145438 |
| body temperature regulation in the brown-necked raven (corvus corax ruficollis). i. metabolic rate, evaporative water loss and body temperature of the raven exposed to heat stress. | | 1973 | 4145437 |
| corvus r. ruficollis (desert or brown necked raven): a reservoir host for zoonotic parasites in egypt. | egypt includes many desert and rural areas. the small uptown fertile areas are placed under illegal enormous pressure of existing resources, where intensive agricultural practices are performed in combination with high population densities. the brown necked ravens (corvus ruficollis) are attracted in huge numbers to such areas. the birds are omnivorous, very aggressive pest and seriously affect human welfare. the study focused on zoonotic role of ravens. | 2011 | 22435167 |
| incubating parents serve as visual cues to predators in kentish plover (charadrius alexandrinus). | ground-nesting birds face many challenges to reproduce successfully, with nest predation being the main cause of reproductive failure. visual predators such as corvids and egg-eating raptors, are among the most common causes of nest failure; thus, parental strategies that reduce the risk of visual nest predation should be favored by selection. to date, most research has focused on egg crypsis without considering adult crypsis, although in natural circumstances the eggs are covered by an incubati ... | 2020 | 32726365 |
| feathers and food: human-bird interactions at middle pleistocene qesem cave, israel. | the presence of fast-moving small game in the paleolithic archaeological faunal record has long been considered a key variable to assess fundamental aspects of human behavior and subsistence. birds occupy a prominent place in this debate not only due to their small size and to the difficulties in capturing them (essentially due to their ability to fly and their elusiveness), but also due to their possible role in the symbolic array in regard to non-nutritional elements (feathers, talons, etc.) a ... | 2019 | 31542561 |
| sequencing of the complete mitochondrial genome of the common raven corvus corax (aves: corvidae) confirms mitogenome-wide deep lineages and a paraphyletic relationship with the chihuahuan raven c. cryptoleucus. | previous studies based on single mitochondrial markers have shown that the common raven (corvus corax) consists of two highly diverged lineages that are hypothesised to have undergone speciation reversal upon secondary contact. furthermore, common ravens are paraphyletic with respect to the chihuahuan raven (c. cryptoleucus) based on mitochondrial dna (mtdna). here we explore the causes of mtdna paraphyly by sequencing whole mitochondrial genomes of 12 common ravens from across the northern hemi ... | 2017 | 29084259 |