+1 for covering your traps if they are cage type traps. Make sure they do not rock and are firm! If you dont have the means to build a trap boc just lean a piece of wood. Be sure to set on fence lines , geographic edges , along a log or rock wall , building ect. Basically animals run edges and edges are natural guard rails for move ment.
scratch with a stick infront of the trap to simulate an area of interest heck u can stick a white feather or piece of paper right there too. a small morsel of bait placed here can help coax a wary critter also.
Ditch the egg and tuna and switch to sardines packed in oil. Big scent factor and the oil doesnt evaporate or wash away as easily as watery baits.
run a lightly dripped scent trail to your trap from some ways away. besure to trail from start to your trap and not away ...
be sure to push the lid on the sardine can back down before putting it alll the way in the back of the trap not to give them a handle. If you get bait stealers ziptie the sardines in using the handy pop ring on top.
U can even set them with in view of your house and take advantage of the bait draw to shoot the predators. ( unless you have a HUGE HUGE HUGE cage) U arent going to catch an adult coyote in one.