We here at FarmCity are firm believers in the full diversity of wildlife that lives in Vancouver - including coyotes (smart, adaptable, amazing animals). However, they've apparently been raiding people's chicken houses of late, particularly in Kitsilano: a neighbour reported seeing one sitting on the front lawn, chowing down on someone's chicken! Poor chicken.
This coyote was seen at Jericho Beach, just east of Spanish Banks, in Vancouver, by Biology_2380.
Our own beloved chickens came out for a snack and a stroll in the asparagus bed the other day - while we worked nearby, believe me!
As far as keeping the coyotes away from the chickens, the trick is tight, latched doors on the chicken coop, and sturdy latches and wire mesh on the chicken run. We have usually built chicken runs with the mesh burried below ground to a depth of a good foot - which has worked fine for us. But we've also designed a chicken coop where the mesh continues unbroken right across the floor of the run (buried a half foot below ground, so the chickens still get soil underfoot for scratching and dust-baths).
Even so, we have found spots at our own chicken coop where racoons or coyotes have tried to dig under the fence, but our strategy has been to fill each hole and put big rocks along the fence as an added defense. We want our chickens to sleep well at night!
Below is a rabbit hutch we built - but we've recently been adapting them for chickens, by making the whole construction twice as high, and the house bigger to accomodate a roost and a nesting box. You can see how easy it is to attach a wire mesh floor, which is then buried below ground.
One of the aracaunas, safely inside the coop!