wild water buffalo resting in a meadow with egrets sitting on back and foraging around it

grass pasture grassland meadow wildlife nature field plain animal wilderness green tree plant wild bird habitat lying egrets buffalo relationship symbiotic behaviour agoratoli range old bull male broken horns sleeping resting cattle kaziranga national park asia endemic bovid diurnal nocturnal megaherbivore soumabrata moulick horizontal color northeast india assam natural herbivore bovidae bovine endangered asian asiatic bubalus arnee large game mammal black water sit back forage sitting foraging