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Cegar berjalur (burung) Cegar belukar (burung) Cegar tengkuk hitam (burung) Cegar tengkuk merah (burung) Cegar kecil (burung) Cegar Sunda (burung) Cegar tompok (burung) Cegar (burung) Cegar Borneo (burung) Cegah keganasan di SingapuraRujukan
WikiPedia: Cegar_tengkuk_hitam_(burung) http://www.hbw.com/species/black-backed-forktail-e... http://birdingasia.org/wp-content/uploads/2012/09/... http://www.boldsystems.org/index.php/TaxBrowser_Ta... //doi.org/10.2305%2FIUCN.UK.2016-3.RLTS.T22710132A... https://books.google.com/books?id=7g10CQAAQBAJ&pg=... https://books.google.com/books?id=HvY0DQAAQBAJ https://books.google.com/books?id=NrUDDQAAQBAJ&pg=... https://books.google.com/books?id=eV7yDQAAQBAJ&pg=... https://books.google.com/books?id=mzupDQAAQBAJ&pg=... https://books.google.com/books?id=tcE-AQAAIAAJ