In 1977 the authors had an opportunity to examine the specimens of Mallophaga collected from a Japanese White Stork, Ciconia ciconia boyciana Swinhoe, 1976 captured in Akita Pref., Japan. They were identified with three species: Colpocephalum zebra Burmeister, 1838, Neophilopterus incompletus (Denny, 1842), and Ardeicola ciconiae (Linne, 1758); and none of these species has been recorded in Japan. Therefore the new descriptions and illustration of these three species will be given in the present paper.
Histoenzymological profiles have been studied of the feather-forming tissues in the Blue Rock Pigeon (Columba livia) under functional athyroidism induced by thiouracil feeding. Feathers were plucked from the ventrum covering the pectoral and abdominal tracts. In control birds, as well as those under replacement therapy, new feathers emerged outside the follicles on the 7th day after such plucking and were fully formed by the 30th day. In the experimental birds, these two phases of feather development were delayed and seen on the 25th and 60th days respectively. Activities of alkaline and acid phosphatases; glucose-6-phosphate, succinate, malate and lactate dehydrogenases (G-6-PDH: SDH; MDH & LDH) during various stages of feather development in the birds under the three different conditions were also evaluated histochemically. Acid phosphatase and LDH activities were not affected adversely by athyroidism, but those of alkaline phosphatase, G-6-PDH, SDH and MDH, all recognised as essential for supporting normal development of feathers, were significantly reduced. It is suggested that athyroidism retards feather development through adverse metabolic effects exerted as a result of decreased activities in a number of key enzymes.
A particular female Whooper Swan Cygnus c. cygnus, wintering at the well known swan and other waterfowls resort, lake Hyoko, was kept under observation in 1976-77 winter. Here the swans and waterfowls are well tamed by artificial feeding. This particular female arrived at Hyoko in late December with her mate and 2 cygnets. In my first observation in December, her crown seemed to be somewhat unkempt, but it was not so curious. As the time went by her crown feathers became longer. This changing process is shown by Plates 13-16.
During the period covered by this report, 56, 062 birds of 174 species were banded at the thirty banding stations which are scattering over 17 prefectures from the northernmost part of Hokkaido to the western end of Yamaguchi Prefecture (see Fig. 1 and Table 1.) The numbers of birds banded and re-caputured by banding station are shown respectively in Table 2, and Table 3. Birds which were banded at a banding station and caught again at the same area next season or thereafter are called here 'returns'. During this period, a total of 2, 303 returns of 24 species was recorded. The data of returns are shown by individual bird, and by bird banding station. Recoveries of birds banded are totaled to 206 birds of 26 species of which 74 individuals of 13 species were reported from abroad, but only one domestic recovery of the banded abroad was obtained during the period. Among the above recoveries, the specially interested are described under the item 'Notable Recoveries'. In the explanation to the recoveries, the widely believed migration route of thrushes and buntings right across the Japan Sea is questioned by the author because of no evidence from bird banding that supports the hypothesis.