Stable isotope and pen feeding trial studies confirm the value of horseshoe crab Limulus polyphemus eggs to spring migrant shorebirds in Delaware Bay - Haramis, G.M.; Link, W.A.; Osenton, P.C.; Carter, Daniel; Weber, R.G.; Clark, N.A.; Teece, M.A.; Mizrahi, D.S. (Journal of Avian Biology, 2007)