bird species forests woodlands temperate subtropical regions extending tropical areas eastern southern australia global population species formally confirmed officially rated range concern according bird described common local habitat closely related true instead belong family includes australian taxonomy described english specific epithet derived ancient greek words blue wing description medium sized swallow like dark brown instances bird appeared grey birds black patch eyes grey black wings white streaks black white tipped tail silver birds blue grey bill capped black known spontaneously swivel tales trait common species relations significant difference distinctive white patch outer wing typically brown species little smaller darker slightly brown similarity little share white patch outer wing distribution habitat birds live primarily open forests woodlands range queensland tasmania west south_australia usually breeding season nest large flocks sure predators away young flocks size adhere seasonal migration movements birds nomadic species tend spontaneously certain change habitat occurs south eastern birds migrate northward autumn birds variety calls certain situations distinctive calls predator approaches consists harsh warn feeding diet diet bird varied eat forms foliage grassy material find ground trees shrubs seen eating butterflies insects eat flowers notable aspect feeding habits way hunt flying insects picking wing eat prey ground find places perch waiting prey utility lines like observed engaging working group rob restless prey extremely unusual birds cooperative general breeding nest consists twigs roots similar foliage form bowl shape lined grass positioned safely bark high tree branch tree nest period august january help birds pair guard nest help care babies female lays white eggs usually period lasts sixteen days time taken fledgling long days typical clutch size vary conservation status large range population size bird estimated expected populous birds range labeled common evaluated concern classification change new evidence taken complete accuracy
Dusky woodswallow