MIGRATION. 



9 



SOUTHERN SPECIES NOT RANGING NORTH TO THE UNITED STATES. 



Scarlet ibis (Guara rubra). Acci- 

 dental five times in the United 

 States. 



Cayenne ibis (Harpi/prion cayenncnsis). 



.Tabiru (Jabiru mycteria). Accidental 

 once in the United States. 



Zeledon boatbill (CocMcariu* zelcdoni). 



Pinnated heron (Botauntx innnntux). 



Lt'inbeye green heron (Butoridrx bru- 

 nescens). 



Striated heron (Butorides striata). 

 Agami heron (Agamia agami). 

 Pileated heron (Pilherodius pileatus). 

 Lineated tiger-bittern (Tigrisoma line- 



atum). 

 Nicaragnan tiger-bittern (Tigrtxonia 



excellent). 

 Mexican tiger-bittern (llctcromus ca- 



banisi). 



SPECIES OCCURRING DURING THE BREEDING SEASON NOT FARTHER NORTH THAN 

 THE SOUTHERN PART OF THE UNITED STATES. 



Flamingo (Phoenicopterus ruber). No 

 longer breeds in the United States, 

 but occurs as a rare visitor. 



Roseate spoonbill (Ajaia ajaja). 



White ibis (Guara alba). 



Glossy ibis (Plegadis autumnalis). 



Wood ibis (Mycteria americana). 



Great white heron (Ardea Occident aUs) . 



Egret (Herodias egretta). 



Snowy egret (Egretta candidissinta) . 

 Reddish egret (Dichromanassa rnfe$- 



cens). 

 Louisiana heron (Hydranassa tricolor 



ruflcollis ) . 



Little blue heron (Florida cacrulea). 

 Yellow- crowned night heron (Nycta- 



nassa vtolacea). 



SPECIES or WIDE RANGE IN THE UNITED STATES AND CANADA DURING THE 



BREEDING SEASON. 



White-faced glossy ibis (Plegadis gua- 



rauna). 



Bittern (Hotaurus lentiginoxus). 

 Least bittern (Ixobrychits exilis). 

 Cory leaat bittern (Ixobrychus neox- 



enus). 



Great blue heron (Ardea Itcrodios) 



Green heron (Butorides virescen*) 



Black-crowned night heron 



rax nycticorax naerius). 



SUMMARY. 



Species of wide range in the United States 7 



Species ranging north to the southern United States 12 



Species not ranging north to the United States 10 



Tropical species occurring as stragglers in the United States 2 



Sjiecies occurring as a straggler from Euroj>e 1 



Total 32 



MIGRATION. 



The herons that breed south of the United States are for the most 

 part nonmigratory. The same is true of the herons breeding in the 

 tropical parts of Florida and Texas. All herons breeding farther 

 north are at least partially migratory, for although a few individuals 

 may remain through the winter in the vicinity of the nesting site. 



