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Documentation of Osprey

Observer Information

Reporter:  Daniel Disner 
Other Observers:  none;

Species, Date, Time and Location Information

Species:  Osprey
First Date/Time:  4/30/2009
Last Date/Time: 
Duration (total time in view):  10 minutes
County:  Adams
Specific Location:  E 78th Avenue and Steele Street
Number:  1
Age:  Unknown
Sex:  Unknown
Plumage:  Other/Unknown


mature wetland/lake - approx 4 acres

Viewing Conditions

Optics:  300mm zoom lense on Pentax K10d camera
Distance:  150'
Light:  slightly subdued, full daylight

Description of the Bird

long narrow wings
4-5' wingspan
white breast and belly, top of head and neck
dark eye stripe
tops of tail feathers show white/dark bands when flared
finger-like flared wingtips
large hooked beak
larg talons
Behaviors: full-body contact with water/near submersion when diving for bass

harassed by magpies into leaving perch
Call: unknown
Plumage: white and dark grey-to-black

Similar Species Discussion

none locally unless you consider large hawks and eagles

Resources Used

previous research and experience

Previous Experience

This is the 4th year osprey have passed through in Spring



Additional Information

Comments: I'd never observed osprey in Colorado until 4 years ago when a single bird stopped at this site for a few days in early May. Single bird sighted following year and a pair came through last year. The birds pass through again in the Fall.
Time: 5:00 pm
Other Dates:
Nearest Town: Thornton
Independent Observers:

Materials Available

Photos |


Date Documentation Submitted

4/30/2009 5:36:00 PM

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Location Map

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