Differences in habitat, height, and flock size between Large-billed Crow and Carrion Crow
-
- Hirobe Hiroyuki
- Hakodate campus, Faculty of Education, Hokkaido University of Education
-
- Fujioka Kento
- Hakodate campus, Faculty of Education, Hokkaido University of Education
-
- Mikami Osamu
- Hakodate campus, Faculty of Education, Hokkaido University of Education
Bibliographic Information
- Other Title
-
- カラス2 種の生息環境，利用空間の高さ，および行動個体数の違い
Description
<p>Previous studies have shown that habitat preferences differ between Large-billed Crow Corvus macrorhynchos (formerly known as the Jungle Crow) and Carrion Crow C. corone in Japan. In this study, we observed the two species and identified the number of individuals observed in flocks, the heights above ground at which they perched and flew, the frequency of occurrence in four general habitat types in Hakodate (urban, agricultural, coastal, and mountains), and the variation of those observations among four seasons. Carrion Crows were observed to be more abundant in agricultural areas, and Large-billed Crows were more abundant in mountainous areas. Large-billed Crows were observed in flocks more frequently, and were observed to perch and fly higher than Carrion Crows.</p>
Journal
-
- Bird Research
-
Bird Research 17 (0), A21-A29, 2021
Japan Bird Research Association
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390288480071228928
-
- NII Article ID
- 130008057018
-
- ISSN
- 18801595
- 18801587
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed