Perched Grey-capped Greenfinch, begging-like behavior

Perched Grey-capped Greenfinch

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Grey-capped Greenfinch, foraging

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Chinese Grey Shrike

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Grey-streaked Flycatcher

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Grey-faced Buzzard

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Chinese Grey Shrike

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Grey-streaked Flycatcher took flight

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Grey-streaked Flycatcher, then flight

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Grey-streaked Flycatcher, took flight

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Grey-streaked Flycatcher, took flight

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Chinese Grey Shrike perched on a pole

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Perched Grey-faced Buzzard, resting on migration

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Chinese Grey Shrike perched on a pole

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Chinese Grey Shrike perched on a pole and took flight

Osaka Museum of Natural History

Movie Archives of Animal Behavior

Chinese Grey Shrike perched on a pole and took flight

Osaka Museum of Natural History

Movie Archives of Animal Behavior