Bufflehead, Common Goldeneye or both

Just out of curiousity, why are you sticking with species that could fly over your area?

Second Goldeneye are considered divers, not that they eat fish like mergansers but they are exactly like puddle ducks.

They pop up occasionally on..

GBWF 

featherauction

and mallard lane farms raises them, as well as many other "farms"' 

I don't keep ducks, though I do chat with someone that keeps many species. She said that the buffleheads were the only ones she had to get rid of because the drakes tried to mate with anything and everything, to the point of greatly distressing all her other species, and causing physical damage to some of them. I don't know if it was just her experience or not but I wanted to relay this on for further research.

Buffleheads can be aggressive durring breeding season we have never had problems as long as we keep one pair per pen they will chase other species of the pond but this only last for a couple of weeks then they get along with everyone again, Goldeneyes can also take control of small ponds durring breeding but not as bad as Bufflehead. Both species are fun to keep our Goldeneyes are very tame waiting at the waters edge for the daily Mazzuri to get thrown to them. They do benefit from a higher protien diet than puddle ducks we use the Mazzuri sea duck diet to supplement the duck grower pellet which we feed, that and CLEAN water and they do fine.

Meant to say they aren't* exactly like puddle ducks.

mallards, pintails, gadwall, shovelers, blue/greenwings... 

puddle ducks or dabbling ducks tip up to feed on vegetation and rarely dive

their legs are set near the center of the body

generally have iridescent speculum feathers

swim with tail clear of water

their hind toe isn't lobed

their feet are smaller than diving ducks

and they spring into air upon take off

Diving ducks

dive completely under water to secure feed

legs set near rear of body

speculum generally dull, lacks iridescence 

usually swim with tail held close to water

hind toe lobed, feet are large

on take off, they patter along surface for some distance before flight.

From Waterfowl identification in the central flyway

Why isn't it editing? i have tried editing my above post several times and it won't let me...

mallards, pintails, gadwall, shovelers, blue/greenwings... 

puddle ducks or dabbling ducks tip up to feed on vegetation and rarely dive

their legs are set near the center of the body

generally have iridescent speculum feathers

swim with tail clear of water

their hind toe isn't lobed

their feet are smaller than diving ducks

and they spring into air upon take off

Diving ducks

dive completely under water to secure feed

legs set near rear of body

speculum generally dull, lacks iridescence 

usually swim with tail held close to water

hind toe lobed, feet are large

on take off, they patter along surface for some distance before flight.

From Waterfowl identification in the central flyway

Glad to here they are adjusting well, the pintail was probably just interested because they were new. The Goldeneyes are always fun to watch.

I love my red heads. They are a fairly common and inexspensive duck. The male kinda meows like a cat. Good entertainment and they arent a big fish eater. Get along great with the birds you have.Most people dont talk about these much. Pretty birds.