In contrast with the scenery of both these zones, shows up the landscape of a third region, on the west--that of scrub. Here, one day later in geological sense, the eye roams over endless horizons of rolling grey-green brushwood, the chief component of which is cistus (_Helianthemum_), but interspersed in its moister dells with denser jungle of arbutus and lentisk, genista, tree-heath, and giant-heather, with wondrous variety of other shrubs; the whole studded and ornamented by groves of stately cork-oaks or single scattered trees. All these, with the ilex, being evergreen, one misses those ever-changing autumnal tints that glorify the "fall" in northern climes. Here only a sporadic splash of sere or yellow relieves the uniform verdure. Obviously regions of such physical character can ill subserve any human purpose. As designed by nature, they afford but a home for wild beasts, fowls of the air, and other _ferae_ which abound in striking and charming variety. For centuries the Coto Doñana formed, as the name imports, the hunting-ground of its lords, the Dukes of Medina Sidonia, and to not a few of the Spanish kings--from Phillip IV. in the early part of the seventeenth century (as recorded by the contemporary chronicler, Pedro Espinosa) to Alfonso XII. in 1882, and quite recently to H.M. Don Alfonso XIII. For five-and-twenty years the authors have been co-tenants, previously under the aforesaid ducal house; latterly under our old friend, the present owner. The sparse population of Doñana includes a few herdsmen (_vaqueros_) who tend the wild-bred cattle and horses that in semi-feral condition wander both in the regions of scrub and out in the open marisma. Nomadic charcoal-burners squat in the forests, shifting their reed-built wigwams (_chozas_) as the exigencies of work require; while the gathering of pine-cones yields a precarious living to a handful of _piñoneros_. Lastly, but most important to us, there are the guardas or keepers, keen-eyed, leather-clad, and sun-bronzed to the hue of Red Indians. There are a dozen of these wild men distributed at salient points of the Coto, most of them belonging to families which have held these posts, sons succeeding fathers, for generations. Of three such cycles we have ourselves already been witnesses. Briefly to summarise a rich and heterogeneous fauna is not easy; a volume might be devoted to this region alone. Elsewhere in this book some few subjects are treated in detail. Here we merely attempt an outline sketch. [Illustration: MARSH-HARRIER (_Circus aeruginosus_)]