Which has the greatest wingspan, bald eagle or osprey? Bald eagle: 6-8 ft Osprey: 4.5-6 ft
What is much of the reproductive failure in eagles and ospreys due to? Man’s use of toxic chemicals to kill insects. Even though most have been banned, they remain in our food chain (drain into rivers and get into fish) because of slow break down.
What family of birds is related to storks and flamingos? Heron
What is “powder down”? Areas of feathers with tips that disintegrate into powder. Herons distribute it by preening & it serves to absorb and remove fish oil, scum and slime.
What are heron nesting colonies called? Rookeries
What are the favorite foods of the Great Blue Heron? Fish, water snakes, frogs, crayfish, mice, shrews, insects
Name 2 Great Egret favorite nesting tree types. Beech & Red Maple
Are eagle, osprey, heron, egret, and hawk eggs incubated by the female, male, or both parents? Both
When is the American Bittern active? Dusk and at night.
Do hawks have monocular or binocular vision? Explain. Binocular vision (eyes on front of face) - gives these predators depth perception.
Hawks “mantle” their prey. What does this mean? Spread their wings to form a shield that hides it from other predators.
Bluejays often mimic the piercing whistled “kee-yer” of what raptor? Red-Shouldered Hawk
Which raptor is larger, the red- shouldered hawk or the northern harrier? Red-Shouldered Hawk
What is the most common duck in the U.S., North America, and the Northern Hemisphere? Mallard
What type of duck is the Mallard? Puddle (dabbling)
When ice closes up marshes, lakes, and ponds what do mallards eat? Corn (other grains)
What is the life span of mallards? 7-9 years (but more than half die before 2)
Which duck’s scientific name (Aix sponsa) means “a waterfowl in wedding dress”? Wood Duck
How does a Kingfisher obtain and eat prey? Hunt from perches (branches, utility wires…). Dives into water with closed eyes and grabs prey with bill. Flys back to perch, whacks fish against perch to stun, and swallows it headfirst.
When are Kingfishers active? From just before sunrise to about 10:00 am.
Where do Kingfishers nest? Burrows dug into steep banks.
How do Kingfishers avoid predators? Diving into water.