1,740 Common Cormorants were marked with colored bands to distinguish individuals at seven colonies from March 1975 to August 1992. 1,032 cormorants were banded at Shinobazu Pond colony in Tokyo, 4 at Yumenoshima colony in Tokyo, 220 at Arai colony in Shizuoka, 442 at Unoyama in Aichi, 12 at Chikubu Island colony in Shiga, 12 Isaki colony in Shiga, and 18 Okiguro Island colony in Oita. About 70% of the banded cormorants were nestlings. All Common Cormorants banded are registered in this paper.
These bands were designed to easily distinguish the year of birth as well as the colony of each individual. We utilized 3 types of hand-made color bands; vinyl pipes passed through copper cords (VPB), ringed plastic plates (PB), and ringed vinyl chloride sheets (VCB). VPB bands are the longest lasting (more than 16 years), but require extensive time and technical labor to attach. Although PB bands require extensive labor to make, they are easy to attach to the cormorant's legs. Various letters, numbers and marks were inscribed on the PB bands, and a large number of bands which were individually distinguishable bands were prepared. VCB bands are easy to distinguish from a distance, but tended to fall off after just a few years.

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Sand Martins Riparia riparia ijimae were banded at Nakashibetus (43°32′N, 144°54′), eastern Hokkaido, in June and August, 1992. 312 birds captured in June were adults. Of 115 birds captured in August, all but one were juveniles. This suggests that adults leave the colony just after breeding, while juveniles remain longer.
The population size of breeding adults, estimated by Petersen's method, was 1,259 on June 22. This indicates that about 630 pairs were breeding at this colony, and that an estimated 66% of the nest holes were being utilized. These results were checked by a direct survey of nest holes after breeding was over. This showed that about 60% of the holes (28-53cm in depth), had been utilized. This figure agrees well with the estimated percentage of active nest holes, 66%.

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483 Common Cormorants were banded with color bands at Sugekari Pond, Chita-gun, Aichi Prefecture, from 1986 to 1993; and 247 observations of color-banded cormorants were collected from Aichi (17 observation sites) and neighboring Shizuoka Prefecture (13 observation sites).
The farthest observation was at the mouth of the Abe River (Shizuoka P.), about 140km from the colony. These reports and other observations indicate that some cormorants tend to disperse during their first winter, while others remain in their native colony. Cormorants which remain tend to feed and rest at fixed places.

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Research was conducted on breeding of the Little Tern (Sterna albifrons) along the coast of Osaka Bay. Over 100 terns were found in two colonies on reclaimed land (Nishinomiya-hama and Kohshien-hama). No other large colonies were confirmed, but there is a strong possibility that such colonies do exist in areas of reclaimed land that were off-limits to the survey. Little Terns breeding on Osaka Bay depend upon reclaimed land for breeding sites. Availability of these sites fluctuates from year to year, resulting in instability in the tern's breeding environment.
From June 10 to July 7, 415 Little Terns were banded (30 adults, 2 juveniles and 383 chicks) at Nishinomiya-hama and Kohshien-hama.

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A roosting flock of Little Ringed Plover was observed in a sport park along the Ara River, near the city of Omiya, Saitama Prefecture. Observations were conducted during 1990 and 1991, and showed that the plovers begin arriving in June, reach a peak in August, then remain until mid or late September.

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Investigations of Ixodid ticks on migratory land-birds were carried out in Japan. Two genera, consisting of 9 tick species (Ixodes nipponensis, I. pavlovskyi, I. persulcatus, Ixodes sp., Haemaphysalis flava, H. longicornis, H. phasiana, H. wellingtoni) were collected from 19 bird species which were investigated at 17 fields sites. The Spirochaete Borrelia burgdorferi sensu lato was isolated from immature I. persulcatus found on Black faced Bunting Emberiza spodocephala, and Brown Thrush Turdus chrysolaus in Hokkaido; and nymphal or female stages of I. turdus were found on Black faced Buntings in Yamagata, and on Brown-eared Bulbul Hysipetes amaurotis in Aichi.
These results strongly suggested that birds as well as rodents play an important role as reservoir hosts of Lyme borreliosis in Japan.

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A young Steller's Sea-Eagle, found injured at a local garbage dump, was brought to the Niigata Prefecture Bird Protection Center on 23 Feb. 1992. The bill was injured in a collision, and the bird was unable to feed properly. The bird was fed liquid sugar mixtures until able to eat solid food. After that, the diet was switched to chicken meat and vitamin supplements. The eagle was banded and released on 28 Jan. 1993.

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