Many birds are at risk when they stop to feed, rest or breed en route, say scientists.
They are not fed or bred or vaccinated.
Surprisingly, farmer types did not differ for herd size, calving, feeding system, or breed.
It's easy to envisage how mice, cockroaches or flies can sneak into dirty or badly maintained facilities to feed and breed – but horses?
Ticks feed and breed on deer, and there are far more deer on the east side.
Their parents have come from Mexico and Honduras to pick tobacco, feed and breed the hogs and pack turkey meat.
In the summer wet season, the frog emerges on the surface rocks to feed and breed in the rain.
The pumping of groundwater by agricultural interests and land developers in the region lowered the water levels needed by the pupfish to feed and breed.
Conservation scientists have identified 101 "corridors" in India along which elephants move between core habitat, where they can feed and breed.
It's a wild encounter, and there's an element of chance, but in peak season, when sharks gather to feed and breed, sightings are almost guaranteed.
Every nectar-rich flowerbed, wildlife pond and flowering tree helps create a patchwork of places for insects to feed and breed.
