Predation: Prey plumage adaptation against falcon attack.

Area of Science:

• Avian ecology
• Evolutionary biology
• Predator-prey dynamics

Background:

• Feral pigeons (Columba livia) exhibit diverse plumage types.
• Peregrine falcons (Falco peregrinus) are swift predators posing a significant threat.
• Plumage coloration may influence pigeon survival rates.

Purpose of the Study:

• To investigate the selective predation patterns of peregrine falcons on feral pigeons.
• To determine the impact of pigeon plumage coloration on survival rates.
• To assess if plumage color is an heritable anti-predator adaptation.

Main Methods:

• Quantitative field observations of pigeon-falcon interactions.
• Experimental manipulations to assess prey selection.
• Analysis of plumage coloration as an independently heritable trait.

Main Results:

• Peregrine falcons exhibit selective prey choice, targeting specific pigeon plumage types.
• Pigeon plumage coloration significantly affects survival rates during falcon attacks.
• The advantageous plumage color is an independently heritable trait.

Conclusions:

• Plumage color in feral pigeons is a key factor in surviving peregrine falcon predation.
• This coloration functions as an anti-predator adaptation against high-speed aerial attacks.
• The heritability of this trait suggests strong selective pressure from falcon predation.