Interesting Fact: Bufflehead nest only in cavities, using holes dug by Northern Flickers and sometimes Pileated Woodpeckers (as well as artificial nest boxes). In the summer, females that are too young to breed, or whose nests have failed, fly around in noisy groups and scope out the available nest holes for the following breeding season. Just before laying, females make more secretive flights to prospective holes, either alone or with their mates. They usually choose cavities in poplar or aspen trees, except in California where they often use pine trees. ( https://www.allaboutbirds.org/guide/Bufflehead/lifehistory )
Interesting Fact: Bufflehead fossils from the late Pleistocene (about 500,000 years ago) have been found in Alaska, California, Florida, Illinois, Kansas, Texas, and Washington. One California fossil that resembles a modern Bufflehead dates to the late Pliocene, two million years ago. ( https://www.allaboutbirds.org/guide/Bufflehead/lifehistory )
Interesting Fact: The oldest Bufflehead on record was at least 18 years and 8 months old. It was caught and re-released by a bird bander in New York in 1975. ( https://www.allaboutbirds.org/guide/Bufflehead/lifehistory )
The Teacher says to the class: Who ever stands up is stupid
*Nobody stands up*
Teacher: I said who ever stands up is STUPID!
*Little Johnny stands up*
Teacher: Johnny, do you really think that you are stupid?
Little Johnny: No Mrs, I just thought that maybe you are lonely being the only one standing.
Interesting Fact: Bufflehead normally live only in North America, but in winter they occasionally show up elsewhere, including Kamchatka, Japan, Greenland, Iceland, the British Isles, Belgium, France, Finland, and Czechoslovakia. In some of these cases, the birds may have escaped from captivity. ( https://www.allaboutbirds.org/guide/Bufflehead/lifehistory )