BUFFLE-HEAD. 
153. Clmritonetta albeola. 14 inches. 
This handsome little duck is also known as “ Butter-ball ’’ 
and “Dipper-duck/ - the latter name given to them on account 
of the ease with which they can disappear under the water. 
They are always on the alert and will dive at the flash of a 
gun. Head iridescent blue, green and purple, and with a 
large white patch extending from eye to eye, across the back 
of the puffy crest. Their flight is very rapid, and they can 
take wing from the water easier than the majority of ducks. 
Nest. —In holes of tree stumps or in the banks along the 
sides of rivers, 8 to 14 eggs of a light grayish color 
(2.00 x 1.40). 
OLD-SQUAW—LONG-TAILED DUCK. 
154. Harelda hyemails. 21 inches. 
One of the very few ducks that change their plumage in 
summer and winter. Both sexes are marked similarly, but the 
female is somewhat duller and lacks the long tail feathers of 
the male. They are excellent swimmers and dive to great 
depths in search of their food. 
Nest. —Generally concealed in the long grass near the water, 
made of grass and lined with feathers. 6 to 10 eggs (2.00x1.50). 
no 
