egger
n.— «Four years later spring is back, and with it, thankfully, the osprey, guarding her second clutch since the trauma. Back too, however, is that obsessive breed of predator known as the egg collector.…“Eggers”, as they call themselves, seemingly transcend occupational and class boundaries.» —“Hunting the rare egg thieves” by Nick Thorpe Times (London, England) May 14, 2006. (source: Double-Tongued Dictionary)