Until a few years ago we *did* have hummingbirds in the UK...... 
I suddenly feel terribly old having seen:
Proboscis Monkey
Sumatran Rhino
Douc Langur
and ... Hummingbirds (spectacular!).
I remember the old walk through Hummingbird house at ZSL. It seemed so simple and was spectacular.
Where and when did you see the first two?
As for the Proboscis Monkey, there are several possibilities: Twycross held the species from 1969 until 1985 and briefly in 1997
I saw proboscis monkeys several times at Twycross Zoo in the 1980s; however, I am very surprised to learn that the species returned to Twycross in 1997. That wasn’t well publicised otherwise I would have made a visit to Twycross especially to see them.
Do you have any further details about the 1997 animals? Where did they come from? How many were there? What happened to it/them?]
Although I may be incorrect, the odds are that @SHAVINGTONZOO saw Sumatran Rhinoceros at Port Lympne, which held the species until 1998.
As for the Proboscis Monkey, there are several possibilities: Twycross held the species from 1969 until 1985 and briefly in 1997, several German collections held the species in the 1970's through to the 1990's, and Apenheul in the Netherlands held the species from 2011 until 2015.
@TLD
"NTRODUCTION Proboscis monkeys (Nasalis larvatus) are large and sexually dimorphic
Colobines that are endemic .....
I think that the entry re:Twycross is an error.
I agree with Bongorob that the date is wrong in this article . I saw the proboscis monkeys at Twycross on several occasions . They imported 1.2 , both females produced and reared a male offspring , but the breeding male died . I think they later received a second unrelated male , possibly from the Bronx , but then the group died out , I do not think there was any further breeding . They were housed in a wooden shed , with typical Twycross outside enclosure . Lovely animals , as were the uakaris .





I am sorry that I missed the Sumatran rhino at Port Lympne.
Sorry to rub it in(hehe) but I have a photo on my desk of myself feeding him(Torgamba). Probably my biggest zoo highlight ever.By far my biggest zoo regret, as well. .
I think the fact there is a photograph of you in existence is the bigger rarity![]()
I was disappointed when I found out after my Howletts visit that the rhino was still at Port Lympne, when I did visit the park the year later, he had gone.![]()