Gross morphological, histological and scanning electron specifications of the oropharyngeal cavity of the hooded crow ( Corvus cornix pallescens )

2020 ◽  
Author(s):  
Mahmoud S. Gewaily ◽  
Mohamed M. A. Abumandour
Keyword(s):  
Hooded Crow ◽  
Oropharyngeal Cavity ◽  
Corvus Cornix ◽  
Scanning Electron

Gross morphological features of the air sacs of the hooded crow ( Corvus cornix )

2020 ◽  
Vol 49 (2) ◽  
pp. 159-166
Author(s):  
Ahmed K. El‐Sayed ◽  
Said Hassan
Keyword(s):  
Morphological Features ◽  
Hooded Crow ◽  
Air Sacs ◽  
Corvus Cornix

scholarly journals To Species Diversity of Nematode Fauna of Corvidae Vigors Family, 1825 at Volga River Delta

2018 ◽  
Vol 12 (3) ◽  
pp. 11-17
Author(s):  
A.P. Kalmykov ◽  
V.A. Strelkov
Keyword(s):  
River Delta ◽  
Volga River ◽  
Hooded Crow ◽  
Volga River Delta ◽  
Corvus Frugilegus ◽  
Corvus Cornix ◽  
New Hosts ◽  
First Time ◽  
Nematode Fauna

The purpose of the research is to systematize the long-term data on study of nematode fauna of Corvidae family birds of Volga river delta. Materials and methods. Data of helminthological researches carried out during the period from 1936 to 2017 in different landscape zones of Volga river delta are included into the project. The study of the species composition of the nematode fauna was carried out based on analysis of own and literature data received during helminthological autopsy of the Corvidae family birds belonging to 3 species: hooded crow (Corvus cornix Linnaeus, 1758), rook (Corvus frugilegus Linnaeus, 1758), magpie (Picapica Linnaeus, 1758). Traditional methods were used during collection and handling of helminthological material (Skryabin, 1928; Dubinina, 1955). Nematodes have been fixed by the mixture made from equal parts of 70% alcohol, lactic acid and 50% glycerol, 4% formalin solution or in Barbagallo liquid. Nematodes have been identified by famous indicators. Results and discussion. 480 specimen of Corvidae family birds, 170 specimen of which had been infested by nematode worms, were investigated in order to study helminthofauna at Volga river delta from 1936 to nowadays. Having summarized the literature data with the results from own study of Corvidae family parasitophauna we have made a taxonomical list including 17 species of nematodes. During the period from 1976 to 2017 we have been discovering 3 species of nematodes for the first time: Microtetrameres helix (Cram, 1927) - in a rook, Oxyspirura sygmoidea (Molin, 1860) - in a rook, a magpie and a hooded crow, Pseudaprocta decorata (Li, 1933) - in a magpie. 2 species of nematodes have been registered in Corvidae family as in new hosts in the studied region too. Baruscapillaria corvorum (Rudolphi, 1819) - in a hooded crow, a magpie and Diplotriaena tricuspis (Fedtschenko, 1874) - in a hooded crow.

scholarly journals Sexual aggression by intruders in hooded crow Corvus cornix

2015 ◽  
Vol 19 (1) ◽  
pp. 91-94 ◽  
Author(s):  
Piotr Zduniak ◽  
Jakub Z. Kosicki ◽  
Reuven Yosef
Keyword(s):  
Sexual Aggression ◽  
Hooded Crow ◽  
Corvus Cornix

scholarly journals Nest-site preference of Hooded Crow (Corvus cornix L.) in Debrecen, Hungary

2011 ◽  
pp. 13-17
Author(s):  
László Kövér ◽  
Lajos Juhász ◽  
Péter Gyüre
Keyword(s):  
Tree Species ◽  
Nest Site ◽  
Nest Site Selection ◽  
Site Preference ◽  
Hooded Crow ◽  
Corvus Cornix ◽  
Insignificant Difference ◽  
Different Characteristics ◽  
Hooded Crows ◽  
The Given

In the past decade, the population of the Hooded Crow has shown significant growth in Debrecen, Hungary. The aim of this study was to become acquainted with the nest-site selection behavior of Hooded Crows in urban spaces. While our research revealed that the Hooded Crow is not particular when it comes to selecting among tree species for nesting, we did notice differences regarding nesting height. Hooded Crows living in the city build their nests higher up than those living outside Debrecen’s city limits. We also discovered a slight, insignificant difference between nesting heights and tree species, which is probably due to the different characteristics of the given tree species. As for nesting heights, we found that in typical urban habitats there were no relevant differences. However, when we compared these habitats in pairs, it came to light that nesting heights -when comparing solitary trees - wood segments and tree rows - wooded segments- did show significant differences, which can be explained by the various conditions provided by the habitats mentioned.In summary, the following results emerged from our research:1. The Hooded Crow prefers approximately the same nesting heights in all kinds of habitats, urban environment and tree species.2. The nesting height does not significantly depend on the habitat itself or on the tree species.

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