bird's nest vs bunch

bird's nest

noun
  • Any tangle of fibers resembling a typical nest of a bird. 

  • A structure built by a bird as a place to incubate eggs and rear young. 

  • Any of several plants having some resemblance to the typical nest of a bird, eg, wild carrot (Dauca carota) 

bunch

noun
  • A group of similar things, either growing together, or in a cluster or clump, usually fastened together. 

  • A protuberance; a hunch; a knob or lump; a hump. 

  • An informal body of friends. 

  • A considerable amount. 

  • A group of logs tied together for skidding. 

  • An unusual concentration of ore in a lode or a small, discontinuous occurrence or patch of ore in the wallrock. 

  • The reserve yarn on the filling bobbin to allow continuous weaving between the time of indication from the midget feeler until a new bobbin is put in the shuttle. 

  • The peloton; the main group of riders formed during a race. 

  • An unmentioned amount; a number. 

  • An unfinished cigar, before the wrapper leaf is added. 

verb
  • To be gathered together in folds 

  • To form a bunch. 

  • To protrude or swell 

  • To gather fabric into folds. 

  • To gather into a bunch. 

How often have the words bird's nest and bunch occurred in a corpus of books? (source: Google Ngram Viewer )