Natural paradise, the bird sanctuary
<div style="mso-element: comment-list;"><div style="mso-element: comment-list;"><!-- [if !supportAnnotations]--><strong style="mso-bidi-font-weight: normal;"><span style="font-size: 10.5pt; line-height: 115%; font-family: 'Arial',sans-serif; mso-fareast-font-family: Aptos; mso-ansi-language: ES; mso-fareast-language: ES-TRAD; mso-bidi-language: AR-SA;">The reservoirs of the Zadorra system, integrated in the Natura 2000 Network by being declared a Special Area of Conservation (SAC)</span></strong></strong><span style="font-size: 10.5pt; line-height: 115%; font-family: 'Arial',sans-serif; mso-fareast-font-family: Aptos; mso-ansi-language: ES; mso-fareast-language: ES-TRAD; mso-bidi-language: AR-SA;"><!-- [if !supportAnnotations]-->, form an ecosystem of great value and constitute as a whole one of the most important inland water areas of the Basque Country as a wintering and breeding place for waterfowl. In addition, they play an important role in the migration of birds, as they provide a resting and feeding place for numerous species. <br><br>On the other hand, a rich mosaic of aquatic vegetation develops in the inlets and on the bottoms of the shallow water tails.aacute;tica</strong> (especially in the Ullibarri reservoir), with species of interest due to their rarity in the Autonomous Community of the Basque Country.</span><!-- [if !supportAnnotations]--><!--[endif]--></div><br><br><br><[endif]--></div>.