Presentation on theme: "1 MIXED-SPECIES BIRD FLOCKS IN SOUTHEASTERN PERU."— Presentation transcript:
1 MIXED-SPECIES BIRD FLOCKS IN SOUTHEASTERN PERU
fruit collection, Cocha Juarez
Swallowtail chrysalis Papilio sp.
Wedge-billed Woodcreeper MIXED-SPECIES FLOCKS Characteristics of flocks insectivorous species permanent associations with jointly held territories understory flocks & canopy flocks up to 20 or more species at one time in understory flocks up to 30 or more species at one time in canopy flocks composition of core species similar from flock to flock one pair of each species with their young of the year jointly defended territory all species nest within the joint territory flock members spend their lives in the same flock
16 Advantages of Flocking protection from predators members have use of a larger exclusive area than they would be able to control individually Barred Forest-Falcon