Wait, I didn't know African Jacana's were rare under human care. I know I saw one for a few years at San Diego Zoo's Africa Rocks area.CR
Baer's Pochard
Bali Myna
Blue-Billed Curassow
Blue-Crowned Laughingthrush
Blue-Throated Macaw
Guam Rail
Puerto Rican Parrot
EW
Guam Kingfisher
≤5 Zoos
African Jacana
Black Guillemot
Flying Steamer Duck
Lesser Green Broadbill
Malaysian Pied Hornbill
Piping Plover (Seen at Lincoln Park Zoo in 2019, but currently held by 0 institutions according to Zootierliste)
Puerto Rican Parrot
Razorbill
Screaming Piha
Storm's Stork
Wattled Curassow
White-Throated Bee-Eater
And bizarrely none of those 6 are in Mexico!It is a little surprising that Socorro Doves are much more widespread in European collections (33 holdings listed on ZTL) than in North American ones (6 according to ZTL).
I was fortunate to see hoatzin in the Diving Bird House at Bronx Zoo in 1990.I remember seeing Hoatzin back at the Bronx Zoo in the 80s. No NA Zoos have them now due to their very difficult husbandry
They're apparently only held at 4 institutions at the moment according to zootierliste (Animal Kingdom, Pairi Daiza, Sylvan Heights, and Weltvogelpark Walsrode). The one I saw was at Henry Doorly Zoo back in 2014.Wait, I didn't know African Jacana's were rare under human care. I know I saw one for a few years at San Diego Zoo's Africa Rocks area.
I saw 4 adult hoatzins in the same building in 1991. It was one of the most surprising and unexpected species I've ever seen at a zooI was fortunate to see hoatzin in the Diving Bird House at Bronx Zoo in 1990.
Crested Partridge are very common in zoos.My memory is foggy as I was both young at the time and rushed through the area (it was incredibly crowded and overwhelming for little me), but I do recall seeing Socorro doves in the Smithsonian zoo's bird house. Whilst back here in Canada, I've seen both crested partridges (not sure just how rare they are in captivity but they are considered vulnerable by the IUCN) and a macaw hybrid of some sort at the Bloedel Conservatory. I've also seen and worked with Northern spotted owls, though they weren't at a public zoo so I'm not sure if they count.
Side note, there's quite a collection of non-releasable birds of prey at a local bird rehab here, which I've visited on multiple occasions, and I'd be curious to know if any of them are considered rare in captivity...
Bali starlings (mynahs) breed very well in captivity, so are common in zoos. Indeed there are reasonable numbers in private hands, especially in Europe.In the Bronx Zoo, I’ve seen Bail Mynahs at both World of Birds and Jungleworld on some occassions, but the one rarest bird that the Bronx has a successful breeding program is the Maleo, which is one of the first birds you see in the exhibits at World of Birds.
I had no idea Maleos, like the Bail Mynahs, were also critically endangered which is why I admire the Zoo for helping save those unique birds from the very brink of exintction.
Did you mean to include the African golden cat and Coquerel's sifaka, Philipine eagle?Furthermore certainly white-necked picathartes in Frankfurt, Lear's and Spix macaw at Pairi Daiza, African golden cat in Blijdorp Rotterdam, Coquerel's sifaka in Köln (a very rare species in Europe but rather common in America) and seven-coloured tanager in Antwerp and Eberwalde.
The "rarest" bird I've seen in a European zoo is Grey-necked Picathartes.
I saw both grey-necked picathartes and white-necked picathartes at London Zoo when I was a very young child; these were, I believe, the first individuals of their species ever displayed in any zoo. In those childhood days birds, however unusual, didn't interest me as much as mammals so, regrettably, these picathartes didn't get the attention they deserved.Furthermore certainly white-necked picathartes in Frankfurt...