The group size effect on vigilance: many unanswered questions

Geometry for the selfish herd

W D Hamilton · Journal of Theoretical Biology · 1971 · 3.5K citations

Social Sciences, Economics, Behavioral Economics +5

On the advantages of flocking

H. Ronald Pulliam · Journal of Theoretical Biology · 1973 · 1.3K citations

Agriculture, Poultry Science, Collective Behavior +6

Vigilance, Flock Size, and Flock Geometry: Information Gathering by Western Evening Grosbeaks (Aves, Fringillidae)

Marc Bekoff · Ethology · 1995 · 93 citations

Life Sciences, Animal Sciences, Zoology +10

Sleeping and vigilance in birds. I. Field observations of the mallard (Anas platyrhynchos)

Dennis Lendrem · Animal Behaviour · 1983 · 92 citations

Life Sciences, Ecology, Zoology +14

The effect of group size on vigilance and feeding rate in spice finches (<i>Lonchura punctulata</i>)

Guy Beauchamp, Barbara Livoreil · Canadian Journal of Zoology · 1997 · 74 citations

Life Sciences, Ecology, Zoology +14