Okay do you want eggs? get 2 females if your getting ducklings they will bond to you. If you don't care about eggs or ducklings then get 2 drakes[ducklings] . You can also get drake and duck and just take any eggs when laid then you won't have to worry about ducklings and alot of breeds [females] don't go broody anyway. You've been on their website which breeds appeal to you? Other than Muscovy and that's the only breed I have, I like Runners, Buffs, Anconas, Breeds like Khaki Campbell are great egg layers so are Pekin, Your going to have to make the final decision, if Me I would do 2 females only because you'll have less worry over a drake getting out of hand when sexually mature and you'll get eggs. But maybe you should consider 3 that way if something happened during transit or after they arrive there would still be 2. and 1 more wouldn't take up much more room. Think about it and let us know what you decide.