why do birds flock?

Views:
 
Category: Education
     
 

Presentation Description

Why do birds flock? A short answer through TINBERGEN’S 4 QUESTIONS

Comments

Presentation Transcript

WHY DO BIRDS FLOCK?:

WHY DO BIRDS FLOCK? TINBERGEN’S 4 QUESTIONS Benjamin Portal

FUNCTION:

FUNCTION Safety in number More eyes and ears on the lookout for predators Defences against predators: Eg . Dense formations are dangerous for stooping birds as they risk injuries. Foraging efficiency increased More eyes to spot food when during winter months.

FUNCTION:

FUNCTION Improved aerodynamics Saves energy in flight

FUNCTION:

FUNCTION Learning from the group The young can learn from the whole flock as well as from the parents Roosting To share heat and save energy

CAUSATION:

CAUSATION Increase in survival chances Energy saving Responses to stimuli

DEVELOPEMENT:

DEVELOPEMENT Development occurs trough learning From the parents From the flock

EVOLUTION:

EVOLUTION Adaptations against predation More competitive Less energy needed for defence