American Dipper - Cinclus mexicanus
American Dipper Photo 2 - American Dipper
Global Rank:
G5
State Rank:
S5
Agency Status
USFWS:
none
USFS:
none
BLM:
none
CFWCS Tier:
3
PIF:
3
General Description
Stout passerine 14-20 cm long. Males have nuetral gray body. Females similar in look, but smaller in size.
Distribution
Montana Range
Habitat
Same habitat used year round. Prefers fast-moving, clear streams along with waterfalls. Species prefers sand, pebble, or rocky stream bottoms, which provide sufficient aquatic invertebrates. Shorelines with large boulders, fallen trees, and rubble provide good shelter and protection from predators.
Food Habits
Diet consists of aquatic invertebrates, insects, and insect larvae. Occasionally small fish and other small invertebrates as well.
Ecology
Winter territory established in Nov - 50 yds to 1/2 mi. Up- stream movement occured in Mar; downstream movement occurred in Oct. Linear territories are permanent and defended year- round. Winter density 5 birds per mile.
Reproductive Characteristics
For Rattlesnake Cr., pairing in Mar; nesting late Mar to Jul breeding territory 350 yds; clutch size 4.1 eggs. Young in nest seen Jun 20-Jul 15 near Fortine.