Extreme weather conditions, like those expected with this year’s powerful El Niño, have strong effects on a charismatic Amazonian bird species, the wire-tailed manakin (Pipra filicauda), according to ...

(PhysOrg.com) -- Leks, they're called, gatherings of males of certain animal species for competitive mating displays. But not every lek's members are competitors, scientists have learned. Some--birds ...