Migration E Flashcards
1
Q
migration
A
seasonal round trip movement between discrete areas not used at other times of year
2
Q
group or single migration
A
gregarious or solitary
3
Q
types of migration
A
complete
partial
irruptive ‘almost migrations’
4
Q
partial migration
A
not all members leave the breeding area during the non-breeding season
young may leave while adults dont
females may leave while males dont
occur in northern range but not south
5
Q
leapfrog migration
A
partial migration
fly over areas inhabited by non-migrating birds to avoid food competition and fighting
6
Q
Irruptive migration
A
almost migrations
food may be available some years and not other years (crop failures)
7
Q
altitudinal migrations
A
lower down mountain in winter, moving higher up to breeding grounds
