While no one knows the precise number of crows in Japan, bird experts and government officials in cities across the nation say populations have increased enormously since the 1990s. Tokyo says the number of crows it has counted in large parks rose to 36,400 in 2001 from 7,000 in the late 1980s, prompting a trapping plan that cut the numbers to 18,200 last year. However, ornithologists say the actual number in Tokyo is closer to 150,000 birds, and that some crows may have moved to different areas to avoid the traps.
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