beautiful beautiful called bird species family large measuring length sexually coloration markings dramatic upper parts black white pale blue head lined colors wing feathers orange throat irregular dark highlights eye ecology fully described known feed small insects larvae found covered branches trees range reproduction takes place april nest placed hole oak large tree nest plant material fur bird typically lays eggs species found countries making mainland southeast_asia appears rare range population highly localized found bird nests predominantly mountain forests range nearly seasonal height adjustment winter apparent localization range makes rigorous estimates population difficult habitat threatened species appear decline classified vulnerable taxonomy constitute genus small birds belonging family short compressed wings short square tails compact body pointed bills strong toes long claws unique head manner descending tree gray bluish black derived ancient greek recorded derived word probably related hack birds hack nuts genus divided seven beautiful placed species called beautiful described british zoologist specimen examined members genus unclear bright blue color plumage invites comparison blue blue species velvet fronted yellow billed billed distribution focused eastern plumage argues assumption according subspecies identified published phylogeny based examination nuclear mitochondrial dna species position beautiful genus established certainty having far lower statistical association model findings species appears closest prefer rocky environments western rock eastern rock species group including chestnut indian chestnut white tailed white close relatives generally species plaster entrance nest mud description described treatise bird deserves beautiful highly distinctive plumage black orange crown upper mantle black pale blue white blue greater medium black finely edged white forming narrow wing bars flight feathers black lined pale blue throat white buff eye highlighted irregular dark wing white base primary contrasts sharply gray distinguishing trait viewing bird flight iris reddish brown dark brown bill black whitish base lower lower parts generally orange legs feet yellowish brown olive brown greenish brown sexual juveniles similar adults streaks mantle blue white primary juveniles closely lined blue paler overall especially chest adults perform complete breeding season juveniles partial replace variable number bird large compared members genus measuring length folded wing measure males females tail males females measures length weight known ecology behavior voice known song described low sweet tone typical similar feeding beautiful pairs small groups individuals unusual gathering individuals observed tree takes mixed species foraging flocks notably observed feeding velvet fronted species prospect food tree foraging flock partners surveyed long tailed lesser tailed white middle apex tall trees exploring covered branches small insects prospect branches individuals observed feeding larger branches tree frequently bird described times prospects manner typical genus hanging upside extended time surveying surroundings compared species described working searching prey stomach contents collected chinese specimens consisted beetles insect larvae breeding reproduction species studied northeast india breeding season april nest placed ground meters high built hole living dead oak tree large trees nests constructed leaves bark held hair bamboo rats opening hole large cemented mud reduce entrance size bird usually lays white eggs red spots measure beautiful sexes reported share equally nest building duties distribution habitat species lives eastern reported scattered sites southeast_asia northwest vietnam central range stretches west northeast india reported seen near present indian states town district south presence bangladesh uncertain found west north burma forests region data bird erratic reports sightings north large numbers species center country wilderness reports sightings southeast china northern thailand northwestern vietnam residential breeding range estimated cover km2 beautiful typically inhabit interior outskirts semi mountain forests northern burma recorded nesting trees scattered open areas central bird found associated usually live altitudes nearly warm seasons seasonal vertical migration india example species spends summer observed winter northeastern burma observed china thailand observation species height threats protection beautiful rare localized distribution specific ecological requirements questioned keeping diversity habitats observed species threatened high elevations habitat reduced logging forest clearance way human center northern vietnam trees known beautiful foraging source nesting site harvested high commercial value research conducted indicated population comprising adults total individuals numbers decline species classified vulnerable
Beautiful nuthatch