A couple of black-tailed gulls choking as a courtship behavior

Black-tailed gulls mating

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Black-tailed gulls, collecting nesting materials

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Black-tailed gulls flocking around the colony

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Black-tailed gulls, catching and eating adult chironomids

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Courtship behavior of a male Bengalese finch

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Courtship behavior of Waved Albatross

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Pecking of black-tailed gull: Dummy experiment ３

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Pecking of black-tailed gull: Dummy experiment ４

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Courtship behavior of the Common Moorhen

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Courtship and spawning behavior of bluegill

Osaka Museum of Natural History

Movie Archives of Animal Behavior

A change of courtship waving display and pair formation in a fiddler crab

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Courtship behavior of the spider, Cyclosa octotuberculata

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Mating behavior of Japanese black salamanders

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Courtship dance of a Lyrebird

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Courtship and navigation behavior of three-spined stickleback Gasterosteus aculeatus

Osaka Museum of Natural History

Movie Archives of Animal Behavior

'Zigzag dance' courtship behavior of three-spined stickleback Gasterosteus aculeatus

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Mating behavior and female reluctance of the white tailed zygaenid moths

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Mating behavior and male gathering of the white tailed zygaenid moths

Osaka Museum of Natural History

Movie Archives of Animal Behavior

A Couple of Lovebirds

The National Museum of Modern Art, Kyoto

Union Catalog of the Collections of the National Art Museums, Japan

Portrait of a couple

Tokyo Photographic Art Museum

Tokyo Museum Collection

Feeding behavior of a flower beetle

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Black-headed gulls, catching and eating adult chironomids

Osaka Museum of Natural History

Movie Archives of Animal Behavior

A Couple at a Ball

Tokyo Photographic Art Museum

Tokyo Museum Collection

Portrait of a Woman in Black

Museum of Contemporary Art Tokyo

Tokyo Museum Collection