El Cerrato hills or cerrales". Other sources say it comes from the Latin serrare, in the sense of an enclosed area, fenced or cordoned off. In the moors there are hares (leporidae), rabbits (oryctolagus cuniculus), partridges (phasianidae) and turtle doves (columbina). Along the river channels there is the presence of herons (nycticorax nycticorax), otters (lutra lutra), the Pyrenean desman (galemys pyrenaicus), while in the moors are found the Great Bustard (otis tarda), Little Bustard (tetrax tetrax) and montagu's harrier (circus pygargus), a species listed in the Catálogo Nacional de Especies Amenazadas or "National Catalogue of Endangered Species" (Royal Decree 439/1990, of 30
Two Little Dickie Birds out of sight of the child, will mark in some conspicuous way the nail of the index finger of one hand and the nail of the second finger of the other hand. Both hands are then shown to the child as fists (folded fingers downwards) with the two fingers with marked nails pointing forward – these represent Peter and Paul. As the rhyme is recited, the hand actions are: Two Little Dickie Birds "Two Little Dickie Birds" or "Two Little Black Birds" is an English language nursery rhyme and fingerplay. It has a Roud Folk Song Index number of 16401.