catching a cow

there are no professionals cow hands around here or anything close to a cowboy, just some ruff hog hunters. this is the second time i have been asked to turn on a cow this month. the other week a man asked us to come up there to his place said he had 2 out we get up there and he then tells us one was about a 1500lb bull and one about 500lbs but we couldnt find them i wasnt wanting to run up on that bull anyhow. i might need to get in this business around here. if anyone has a video of a cow catching they could post it might be helpful. what i was thinking was turn 1 or 2 bulldogs on it and maybe she will sit down or just stand there and tie a rope around her neck to a tree and then take a tractor and pull her in a trailor?