1.日本列島とその近隣島嶼98島におけるキツツキ類11種の繁殖分布を,生態学的な観点から分析した。
2.ひとつの島で繁殖する種の数は,大きな島ほど多かった。
3.北海道や本州などの"本土"とその周辺部の島々の両方に分布する5種(アオゲラ,オオアカゲラ,アカゲラ,コゲラ,クマゲラ)について,周辺部の島々へのすみつき状況を調べてみたところ,面積や本土からの距離に応じて種による違いが認められた。
4.ひとつの小さな島で繁殖する種は,体の大きさや生態が著しく異なっていた。小形種に対する大形種の体の大きさの比は,翼長,嘴峰長,体重でそれぞれ1.4,1.8,3.4以上であった。
5.オオアカゲラとアカゲラ,アオゲラとオオアカゲラといった2種の組合せは,その2種が出合う機会がないために存在しないのではなく,その2種の生態がよく似ているために回避されているものと考えられた。
6.ひとつの島における3種の組合せも,種間の競合を最小限におさえることができるような,体の大きさや生態が異なる種からなっていた。

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北半球の夏季に亜寒帯海洋前線(Subarctic Boundary)を乗越え一時的に亜寒帯海洋生態系の栄養系の上位階層としての機能を発揮するハシボソミズナギドリ(Puffinus tenuirostris)の胃内容物より餌生物を海域毎に明らかにすることを目的とした。
試料は1970～1978年の主に夏季,オホーツク海,北太平洋およびベーリング海で,調査船により行なわれたサケ•マス流網試験操業時にサケ•マス類と共に罹網し溺死したハシボソミズナギドリ439羽である。胃内容物中に見出された餌生物は,魚類およびイカ類の幼稚仔,橈脚類,オキアミ類,端脚類,エビ類,および有殻翼足類等であり,いずれも小型の餌生物が大部分を占めた。
西部亜寒帯環流域(Western Subarctic Gyre)および亜寒帯海流域II(Subarctic Current II)では,植食性動物プランクトンである橈脚類のCalanus cristatusが捕食されていた。このことはハシボソミズナギドリは食物連鎖の低次段階に属する生物をも餌生物として利用可能であることを示唆している。
ハシボソミズナギドリは長距離の渡りの過程で通過する様々な海洋環境の表層に豊富に生息する生物群集を餌生物として利用できる幅広い食性を持つと推定される。このことは,個体数も多く,また寿命も長いハシボソミズナギドリの個体群維持にとって重要な特性と思われる。

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The range of the Bridled Tern Sterna anaethetus is widespread throughout in the tropic and subtropic regions of the Pacific, Indian and Atlantic Oceans and, however, the species was regarded as a rare straggler in Japan.
We discovered the breeding of the Bridled Tern on Nakanokami-shima, Sakishima Archipelago southernmost district of Japan during our stay for ringing sea-birds from 28 to 30 June 1980. Nakanokamishima, another common vernacular name Uganjima, is situated at 24°11'N, 123°34'E, 15km SW of Iriomote-jima and small (length c. 1800m, width c. 300m, alt. 102m) uninhabited island. Here is one of famous sea-birds islands of Japan, yet the conservation is so poor that the sea-birds colonies are often destroyed by Formosan who steal the eggs for food. The breedings of Calonectris leucomelas, Sula leucogaster, Sula sula, Sterna fuscata and Anous stolidus have been known here.
We observed the Bridled Terns at three areas, A, B and C, of the island (Fig. 1) and it seemed that all of them were breeding. The areas A and B were near the shore-line, and large rocks fallen from steep slope heaped up all over there. We could count about 60 pairs of the Bridled Terns at the area A (c. 30 × 100msq.), and only the species were breeding in the colony. In the area B, about half of the area A, the Bridled and Sooty Terns were settled, and a number of the Bridled Terns were about 20 pairs. The area C was rocky place near west end of narrow ridge of the island, and several pairs were breeding.
We searched the breeding status of the Bridled Tern a little intensively in the colony of area A. All ten clutches found there contained one egg, like in other foreign colonies. Their eggs were laid on either inner floor or open flat surface of the rocks more or less covered with large rocks (Photographs 1 and 2 of Plate 6). As described by Warham (1958), the Bridled Tern colonies on Nakanokami-shima were much smaller than those of the Sooty Tern, and most of the Bridled Terns were incubating while all of the Sooty Terns were taking care of their chicks.
Two species of Sterna and one Anous breeding on the island were apparently segregated from their nest-sites. The Sooty Tern was most numerous and some thousands of pairs bred. Most of them made a colony on the plateau of short grass on the center of the island. On the other hand, the Bridled Tern selected such rocky place as mentioned above. The Common Noddy Anous stolidus settled on the ledge.
Analizing other data after this discovery, it became known to us that probably the Bridled Tern had bred Nakanokami-shima and Hamano-shima, 5km NW of Taketomi-jima, few years ago, and that the species might be breeding on Hude-Rock, 12km NE of Seto-zaki, Miyako-jima.

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Dr. Nagamichi Kuroda died on 16th April 1978. He was known as a bird skin collector before the World War II. Unfortunately, nearly all of his collection (about 13, 000 skins) was destroyed by the war in 1945. After the war, he collected bird skins again. New Kuroda Collection was donated to the Yamashina Institute for Ornithology by Mrs. Shigeko Kuroda in 1980. This new Kuroda Collection includes 848 skins (468 non-passerines and 380 passerines) and 2 specimens of Tadorna cristata (_??_ & _??_). This report is a list of type specimens and non-passerines of new Kuroda Collection.

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米国自然誌博物館所蔵の標本とインドSayaji動物園に飼養されているコハゲコウ(Leptoptilos javanicus)を観察し,コハゲコウの頭部および頸部に生える毛様剛羽について数タイプに類別し,その細部について光学顕微鏡および電子顕微鏡レベルで観察を行った。

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1973-76年にPariah Kiteの卵30個を用いて,卵の発生の様子を観察した。産卵日から孵化日までの卵を数日おきに,巣から採取し,卵発生の段階を記録した。

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A breakage of a new telephone pole located in Irihirose-mura in Kitauonuma-gun in Niigata Prefecture occurred on September 30, 1980. The cause of this breakage has been investigated: on the new telephone pole approximately 7 meters above the ground, a nesting hole whose caliber is 8cm was bored, and feathers of Green Woodpeckers and hair of racoon dog and of rabbit were found inside the nesting hole. Consequently, it made clear that the new telephone pole breakage was due to the Green Woodpeckers' behaviour.

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