SAN FRANCISCO (KPIX 5) — Dog owners who frequent San Francisco’s Presidio were being warned to watch out for coyotes.

The warning was issued last week after coyotes attacked 2 dogs there.

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The coyotes are in the middle of pupping season, and become very territorial. They perceive dogs as threats.

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Park officials suggests owners keep their dogs on a short leash and never leave them unattended.

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Pupping season can last through mid-summer.