_IGP3428, originally uploaded by davidjwbailey.
Now, more than ever, you need excellent vision to spot the opportunities in the market places. Do what the Eagle Owl does: find somewhere shady to sit and wait, fly over at altitude, then dive decisively onto the tasty morsels that present themselves. They don't waste effort chasing down secondary prey, and don't take on things that are too big for the tools they have (beak and claws). Economy of effort, maximum results.
That only comes from having a clear view of the field before you fold your wings and dive.