Sully (film) January 15, 2009, US Airways pilots Captain Chesley "Sully" Sullenberger and First Officer Jeff Skiles board US Airways Flight 1549 from LaGuardia Airport to Charlotte Douglas International Airport. Three minutes into the flight, at an approximate altitude of 2,800 feet (approx. 850 m), the Airbus A320 strikes a flock of birds, disabling both engines. Without engine power and judging themselves unable to reach nearby airports (Teterboro Airport being the closest), Sully ditches the aircraft on the Hudson River. The crew and passengers evacuate without casualty. The press and public hail Sullenburger a hero, but the incident leaves him haunted, and
Flock (birds) to find a reliable food source will alert the flock and the entire group may benefit by this finding. While this is an obvious benefit of the information-sharing model, the cost is that the social hierarchy of the flock may result in subordinate birds being denied food by those that are dominant. Another cost is the possibility that some individuals may refuse to contribute in the search of food and instead simply wait for another member to find a food resource. These individuals are known as producers and scroungers, respectively. An intricate hunting system can be seen in the Harris's