jackdaws and rooks swarming in sky above city

animal battlefield bird birds black blue bright cheerless city clouds corbie corvids corvus crow crows daw dirty dominance feeling fleet flock fowl group grunge habitations halloween heavenly herd hooded human increased interaction jackdaw jackdaws monedula murder nature nearestneighbor neighborhood noisy northern of raven ravens rooks saturnine silhouette sky somber squad sullen sun swarming synanthropic team