Tagus Estuary Natural Reserve breed on adjacent farmland. Little bustard ("Tetrax tetrax") occurs all year but is more numerous in winter. Raptors which may be seen over the fields include black-winged kite ("Elanus caeruleus"), short-toed eagle ("Circaetus gallicus") and booted eagle ("Aquila pennatus") Nearby patches of woodland hold short-toed treecreeper ("Certhia brachydactyla"), European nightjar ("Caprimulgus europaeus"), red-necked nightjar ("Caprimulgus ruficollis"), Iberian magpie ("Cyanopica cooki") and many passerines. During the Spring and Autumn many species stopover on the Tagus during their migration these include curlew sandpiper ("Calidris ferruginea") in large numbers with many other shorebirds in smaller numbers, Common redshank and Balck-tailed Godwits reach their
Ben 10: Destroy All Aliens back at his house and Tetrax restores Ben's Omnitrix to normal just as the Mechamorph catches up to them. Gwen sees how the Omnitrix reacts after Ben returns to human form and deduces what has happened just as she, Ben, Tetrax and the Mechamorph are transported into the Omnitrix itself. Inside, Ben and the Mechamorph continue to battle before being attacked by a swarm of Stinkflies just as Gwen and Tetrax are ambushed by a herd of Wildmutt. The four catch up with each other and they realize that the evil Waybig is inside with them just as he resurfaces.