Coyote breeding typically peaks in late February and early March, the gestation period averages 58 to 63 days. Male coyotes can become more aggressive during this time of year, the long and short of it all is that coyotes always pose a risk to your dog (and other small pets).
Coyotes are generally monogamous and maintain pair bonds that can last for several years. The breeding season runs from late December through March, and pups are born in the early spring. … The den is abandoned after the pups are weaned but may be used from year to year.
Unneutered male dogs can be lured away by the scent of a female coyote in her ovulation cycle. Keep a vigilant watch over your male dogs intact.