cuck~cuck- - cuck~cuck-cow , cow , cow . The cuok notes were 
exceedingly Cuckoo-like but the cow was more hollow and 
resonant, as well as much louder, than any notes that 
either of our species of Coccygus ever utter. The 
whinney might be rendered h^-he-h^-h^-h^-h^, all these 
notes being on the same key and delivered very rapidly 
and evenly, in vibrant, somewhat nasal tones. This is 
by no means the first time that I have seen or heard 
Pied-billed Grebes near Ball's Hill in the month of April. 
Some of the flooded thickets on the meadows would furnish 
ideal breeding-places, were the water to remain at its 
present level, but the birds seem to know that it is sure 
to be drawn off before June, for they never linger here 
more than a few days in succession at this season. 
