Trabancos (river) Castile and León (with more than 200 mating pairs). It is also the winter season nesting ground of more than 1,500 red kites ("Milvus milvus"). There are also numerous birds of prey; the most abundant are Montagu's harriers ("Circus pygargus", 50 mating pairs) and lesser kestrels ("Falco naumanni"; almost 150 mating pairs), but there are also hawks, goshawks, falcons, owls, and others. The region is also host to numerous gamebirds, including the red-legged partridge ("Alectoris rufa"). Despite their importance, the population of little bustard ("Tetrax tetrax") in the region appear to be diminishing. Although not all the species protected in
Ben 10: Secret of the Omnitrix Ben. He explains the situation to Ben, who hasn't figured out the meaning of the countdown. He leaves Gwen and Grandpa Max behind, not wanting the latter to be recognized during their trip, but Gwen sneaks on board anyway. Using the advanced medical equipment on board his ship, Tetrax finds the DNA signature of the Omnitrix's creator, Azmuth, and tracks him to a prison facility called Incarcecon. During the journey, Tetrax hopes Ben would stop being a hero when the Omnitrix stop the countdown and Azmuth would shut it up for good. Ben is upset that he'll never be a