A study of the life history or Blue Magpie
2. Roosting behavior (1)
1967 Volume 5 Issue 1 Pages 34-47
Details
1967 Volume 5 Issue 1 Pages 34-47
1. Roosting behavior of the Blue Magpie Cyanopica cyana was studied during March 1962 and April 1964 in Nagano district, Honshiu.
2. Apple orchards and garden trees were used as roosts and factors such as, kind and height of trees, foliage cover, nearby traffic and snow, were analysed.
3. The roosts were seasonally changed according to the annual flocking cycle and roost conditions.
4. Five categories of flock roosting could be classified into: male roost (during incubation period), family roost, compound family roost, small area roost (autumn to winter) and large area roost (winter).
5. These consisted of three types: breeding season roosts, roosts within a home range and roosts outside home range (winter).
6. Factors influencing the roosting behavior: light intensity and food condition, were considered.
7. The evening (entering) and morning (leaving) behavior at roosts in different roost types and seasons were described.
