John N. Mager

Male common loons, Gavia immer, communicate body mass and condition through dominant frequencies of territorial yodels

John N. Mager, Charles D. Walcott, Walter H. Piper · Animal Behaviour · 2007 · 72 citations

Biology, Breeding Behavior, Body Mass +12

Changing territories, changing tunes: male loons, Gavia immer, change their vocalizations when they change territories

Charles D. Walcott, John N. Mager, Walter H. Piper · Animal Behaviour · 2006 · 59 citations

Music, Culture, Philosophy Of Music +8

Fatal battles in common loons: a preliminary analysis

Walter H. Piper, Charles D. Walcott, John N. Mager et al. · Animal Behaviour · 2008 · 52 citations

War Crime, Fatal Battles

Nestsite selection by male loons leads to sex‐biased site familiarity

Walter H. Piper, Charles D. Walcott, John N. Mager et al. · Journal of Animal Ecology · 2007 · 51 citations · Full text

Prospecting in a solitary breeder: chick production elicits territorial intrusions in common loons

Walter H. Piper, Charles D. Walcott, John N. Mager et al. · Behavioral Ecology · 2006 · 42 citations · Full text