Abstract
Body weight, maximum wing length, and tail length of Meadow BuntingsEmberiza cioides, Great Tits Parus minor, Pale Thrushes Turdus pallidus, and Japanese Bush Warblers Cettia diphone were measured from May 1993 to June 2017 at a coastal windbreak forest along Kanazawa, in Ishikawa prefecture, Japan. Statistically significant values were found for three species. Adult male Meadow Buntings had greater maximum wing and tail lengths than adult females during the spring season, and juvenile males were heavier than adult males in spring season. Adult male Great Tits had greater maximum wing and tail lengths than adult females in the spring season; in autumn season, juvenile males had greater maximum wing and tail lengths and heavier bodies than juvenile females; and adult males in autumn had heavier bodies than adult males in spring. Male Japanese Bush Warblers had greater maximum wing and tail lengths and heavier bodies than females in both adult/spring season and juvenile/autumn season comparisons. When examining body weight values for all individuals of each species, minimum and maximum values were 84.4% and 119.0% of mean value in male Meadow Buntings and were 78.9% and 118.8% of mean value in male Great Tits; and no individual had increased body weight rapidly and widely even during the migratory period.
