single eurasian nuthatch bird - latin sitta europaea - known also as wood nuthatch on a tree branch during the spring mating

eurasian nuthatch wood sitta europaea kowalik biebrza narew biebrzanski national park narwianski bird branch tree wooded forest reserve avian wetland wetlands moor moors lakeland brown blue orange wildlife nature natural life ecology fauna poland europe wing wings beak tail neck color colorful wild zoology travel exterior outside outdoor one single alone