Great Frigatebird - Female - Darwin Bay, Isla Genovesa, Galapagos, Ecuador
Great Frigatebird - Female in flight photographed at the Darwin Bay, Isla Genovesa, Galapagos, Ecuador. Note the red eyering on the female. This is the diagnostic field mark to differentiate the females of the Great Frigatebird from the Magnificent Frigatebird. The female Magnificent Frigatebird has a blue eyering.
