SAN DIEGO (AP) – The U.S. Border Patrol is considering another type of surveillance balloon that can be quickly moved to spot illegal activity, part of an effort to see if more eyes in the sky translate to fewer illegal crossings. Agents in south Texas recently finished a 30-day trial of the camera-toting, helium-filled balloon made by Drone Aviation Holding Corp., a small startup that named former Border Patrol chief David Aguilar to its board of directors in January. The 3-year-old, money-losing company gave Aguilar options that may prove lucrative if it gets more orders for its proprietary model. The trial comes as agents test hand-launched drones, which are relatively inexpensive but hampered by short battery life and weight limits. The Border Patrol has also used six large tethered balloons in Texas since 2012.