ML168851301
Bidragsyter
Nels Nelson Media from this contributor Profil
Dato
Lokalitet
Dawson Creek Corporate Park
Washington, Oregon, United States
Media from this location Illustrert sjekkliste- Age and sex
- Juvenile, Unknown sex - X
Observasjonsdetaljer
One of the juvenile BH Cowbirds was located close to the NE corner of the park. The other was located almost directly in front of the library, so they were obviously two different birds, being fed by different Junco parents. Interesting to see Parasitism first hand. It's amazing how hard the Juncos have to work to feed birds much larger than themselves. In neither case did I see juvenile Juncos present, which leads me to surmise that the cowbirds must have hatched first and demanded so much attention of the parents that the Junco eggs may not have hatched. However, I have no empirical evidence to back up this thought.
Teknisk informasjon
- Model
- COOLPIX P900
- ISO
- 140
- Focal length
- 250 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/6.3
- Shutter speed
- 1/500 sec
- Dimensions
- 4564 pixels x 2506 pixels
- Original file size
- 4.82 MB