MIGRATION. 9 



Southebn Species not Ranging North to the United States. 



Scarlet ibis (Guara rubra). Acci- Striated heron (Butorides striata). 



dental five times in the United Agami heron (Agamia agami). 



States. Pileated heron (Pilherodius pileatus). 



Cayenne ibis (H arpiprion cayennensis) . Lineated tiger-bittern (Tigrisoma line- 



Jabiru (Jabiru mycteria). Accidental atum). 



once in the United States. Nicaraguan tiger-bittern {Tigrisoma 



Zeledon boatbill ( Cochlearius zeledoni) . exccllens) . 



Pinnated heron (Botaurus pinnatus). Mexican tiger-bittern (Hcterocnus ca- 



I^embeye green heron (Butorides bru- banisi). 



nescens). 



Species Occurring During the Breeding Season not Farther North than 

 the Southern Part of the United States. 



Flamingo (Phoenicopterus ruber). No Snowy egret (Egretta candidissima) . 



longer breeds in the United States. Reddish egret (Dicliromanassa rufes- 



but occurs as a rare visitor. cens). 



Roseate spoonbill (Ajaia ajaja). Louisiana heron (Hydranassa tricolor 

 White ibis {Guara alba). ruficollis). 



Glossy ibis (Plegadis autumnalis). Little blue heron (Florida caerulea). 



Wood ibis (Mycteria americana). Yellow-crowned night heron (Nycta- 

 Great white heron (Ardea occidentalis). nassa xiolacea). 

 Egret (Herodias egretta). 



Species of Wide Range in the United States and Canada During the 

 Breeding Season. 



White-faced glossy ibis (Plegadte gua- Great blue heron (Ardea herodias). 



rauna). Green heron (Butorides virescens). 



Bittern (Botaurus lentiginosus). Black-crowned night heron (Xyctico- 



Least bittern (Ixobrychus exilis). rax nycticorax naevius). 

 Cory least bittern (Ixobryclius neox- 



enus). 



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 



Species occurring as a straggler from Europe 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, 



