https://stevenround-birdphotography.blogspot.com/2016/11/harlequin-ducks-from-iceland.html
Steve Round Wildlife Photography: Harlequin Ducks from Iceland
Bird and wildlife photographs from a full time UK based photographer
wildlife photographyharlequin duckssteveroundiceland
https://wildfidalgo.blogspot.com/2013/11/harlequin-ducks-and-friends.html
Harlequin Ducks and Friends
This seems to be a banner year for Harlequin Ducks (Histrionicus histrionicus) in Deception Pass State Park. Off and on, I have seen o...
harlequin ducksfriends
https://www.fws.gov/species/harlequin-ducks-histrionicus
Harlequin Ducks (Histrionicus) | U.S. Fish & Wildlife Service
harlequin ducksfishwildlifeservice
https://www.usgs.gov/publications/evaluation-bursal-depth-indicator-age-class-harlequin-ducks
Evaluation of bursal depth as an indicator of age class of harlequin ducks | U.S. Geological Survey
We contrasted the estimated age class of recaptured Harlequin Ducks (Histrionicus histrionicus) (n = 255) based on bursal depth with expected age class based...
https://www.usgs.gov/publications/do-wintering-harlequin-ducks-forage-nocturnally-high-latitudes
Do wintering Harlequin Ducks forage nocturnally at high latitudes? | U.S. Geological Survey
We monitored radio-tagged Harlequin Ducks (Histrionicus histrionicus) to determine whether nocturnal feeding was part of their foraging strategy during winter...
https://www.usgs.gov/publications/long-term-monitoring-program-evaluating-chronic-exposure-harlequin-ducks-and-sea
Long-term monitoring program: Evaluating chronic exposure of harlequin ducks and sea otters to...
We found that average cytochrome P4501A induction (as measured by EROD activity) during March 2014 was not elevated in wintering harlequin ducks captured in...
long term monitoring