Although secretarybirds build their nests in the trees in the wild, the captive birds at the Oklahoma City Zoo built theirs on the ground, which left their eggs open to depredation by local wild mammals.
Meskipun burung sekretaris membangun sarang mereka di pohon-pohon di alam liar, burung penangkaran di Oklahoma City Zoo membangun sarang di tanah, meninggalkan telur-telur mereka terbuka untuk dimangsa mamalia lokal liar.