. >> reporter: george mccowski says he ran into a coyote as big as his 60-pound dog mosey last week. >> he was brown and fearless, usually they run away. this guy was just standing and looking. >> reporter: with pupping season running april through august it's no wonder coyote parents are becoming more aggressive. starting tomorrow a quarter mile of jfk drive between north lake and middle lake will be off limits to dogs through the pupping season. >> we tell everyone of course keep your dogs on leash and if you can avoid the area avoid the area. but if a coyote does approach, try to make some noise. >> reporter: in 1999 our health and science editor john fowler brought us this look at how officials handled a coyote they said posed a serious threat to people and animals. >> caught him around the chest. >> reporter: this good catch is a coyote or coyote either will do. coyote expert darren simpson traps troublesome critters. >> you see, old male. it's an alpha. these are the ones that usually do your killing. so what i'll do with this little guy here, is put him in a bag. >> reporter: