Couftfsy of Vw Hfv, York State Muse 



Plate 23 



GREEN HERON lintnuitis iirc.scin.s iHrt-.srfiis i,lAiUi:irii:i) 

 IMMATURE ADULT 



AMERICAN BITTERN B>'t,iuni.-i /rn{iuino.-<us (MnntaRUl 



All i IKlt HlZC 



LEAST BITTERN Is.^h, ;,. I.u.-^ , xih^ \l.imi-hu) 

 FEMALE MALE 



