Scam
If you don't believe it then keep in mind that bird imports from Cameroon are currently banned.
USDA - APHIS - Import
Import Procedures for a Pet Bird Entering (Non-U.S. Origin) the United States
ADVISORY: Until further notice, there is a temporary ban on the importation of pet birds from Afghanistan, Albania, Azerbaijan, Bangladesh, Benin, Burkina Faso, Egypt, Cambodia, Cameroon, Czech Republic (regions (kraj) of Kralovehradecky and Pardubicky ONLY), Djibouti, Germany (the following kreis ONLY): Muldental, Torgue-Oschatz, Dobeln, Saalfeld-Rudolstadt, Schwandorf, Neustadt A.D. Aisch, Bamberg, Kitzingen, Erlangen-Hochstadt, Oberhavel, Havelland, Ostprignitz-Ruppin, Potsdam-Mittelmark, Uckermark, Mecklenburg-Strelitz, Prignitz, Jerichower Land, Gorlitz and Bautzen, Ghana, Hong Kong, Hungary (Bacs-Kiskun and Csongrad counties ONLY), India, Indonesia, Iran, Israel, Ivory Coast (Côte d'Ivoire), Japan, Jordan, Laos, Kazakhstan, Kuwait, Malaysia, Myanmar, Nepal, Niger, Nigeria, Pakistan, Palestinian Autonomous Territories, Peoples' Republic of China, Poland (voivodships [provinces] of Warminsko-Mazurskie, Mazowiekie, and Kujawsko-Pomorskie ONLY), Romania, Russia, Saudi Arabia, South Korea, Sudan, Sweden (Kalmar county ONLY), Thailand, Togo, Turkey, Ukraine, United Kingdom (counties of Norfolk, and Suffolk, England), and Vietnam.