GEOGRAPHICAL DI S TRIBUT I ON OF T H E GENUS P E T RO CH E L ID O N.
n o
-—*- Migratory.
—I— Bird of passage.
< -0 -»- llemains locally during the winter.
—A— Transplanted.
Winter resident.
A Acclimatized. V Guest.
o I ’crmancDt resiieut. t Wanderer.
CX3 Changing lirddtit.
□
Ha rd y '|
Visitor. ffl Genorallv ) 1
Accidental visitor. ■H 1
In colonics J