http://209.85.173.104/search?q=cache:aNa98mS16LsJ:www.sdcounty.ca.gov/awm/docs/coyoteattacks.pdf+coyote+attacks+california&hl=en&ct=clnk&cd=2&gl=us&client=firefox-a
http://www.varmintal.com/attac.htm

Two links to coyote attacks.

89 in California alone.

They do attack adults.

The Humane Society of the United States is a lobby group with
goals similar to PETA. They do not operate even 1 animal shelter
though they take in millions. They are not the same as your local
animal shelter though would like you to think so.