Where Harpy Eagles Roam: teacher key

Harpy Eagles, grade 11 edition, written for 11th grade. Release programs, backpack transmitters, nest cameras and bone fragments show where harpy eagles go and what they eat. Some numbers are still uncertain.

Read the book. Print this page for the key.

Questions and answers

1. How many released harpy eagles were in the tracking study?
   • 16
   • 306
   • 36 (answer)
2. The page gives a territory of about 30 square kilometers and tracked home ranges averaging 1039.5 km2. What does that show?
   • Territory and home range are reported separately (answer)
   • They are the same measurement
   • Both come from one nest
3. What did camera-trap researchers estimate about nests?
   • One nest is enough
   • A minimum of 13, 17 and 26 nests are needed to see a nestling on 90, 95 and 99 percent of days (answer)
   • Nests cannot be counted
4. Researchers estimated home ranges only for eagles with how much tracking data?
   • At least 2 days
   • At least 10 years
   • At least 180 days (answer)
5. What did researchers find at 16 nests in Brazil's Mato Grosso region?
   • Bone fragments that showed what the eagles ate (answer)
   • Only empty nests
   • Only eggs
6. Which source gives a different talon length from zoos and a museum?
   • No source
   • The Peregrine Fund, at about 3 to 4 inches (answer)
   • Every source

Words

• telemetry: remote tracking
• transmitters: radio devices
• flagship: symbol species
• nestling: baby bird