This is certainly IMO the biggest news on the UK section of Zoochat for a very long time....it was on BBC news also. My very earliest memory of Bristol Zoo was a visit there with my mother, circa 1955 when I was aged about 8. Leaning over the Black Rhino(now Pygmy Hippo) outdoor enclosure. For one who is very interested in gorillas its strange I don't remember them (or any other apes) from that first visit. Later I would visit as a schoolboy in the holidays, spending the whole day in there from opening to closing time. Got to know the keepers in several of the 'houses'. Used to 'help' them too- those were the days... I've been a regular visitor ever since. From those early days I remember particularly;
Congo and Josephine the gorillas.
Rosie the elephant.
Willie and Stephanie the black rhino pair( first breeding in UK- I was allowed to see the first calf at 5 days old).
Jack & Jill orangutans.(other pairs came later)
Buttons and Susan the chimps(parents of Timothy) + Lulu and Leslie the 2nd pair.
Monkey temple- rhesus monkey colony. The noise of the little tin swinging doors as the monkeys used them.
Penguins in enclosure nearby- King, Blackfooted, gentoo etc. It had a curving barrier with wooden rim like the deck rail of a ship.
Monkey house/row; Mandrill, Drill, Guinea and Yellow baboon + others.
Lion House- every big cat species, including after mid 60's, the famous White tigers Champak and Chemili.
Old antelope house- Beisa oryx, reedbuck, bushpig, llama( with plastic screen in front of stall due to his aggressive spitting) the Grevy zebras, in particular the stallion 'Rastus' whose braying call would ring around the whole zoo every halfhour or so.
The bears- William & Cynthia the Polar Bears-(parents of Sebastian) a SunBear called 'Benjamin'. Brown and Himalayan bears. the pit in the centre of the Aquarium was still used by Sloth Bear then. Wolves in the adjacent cage above the rock garden.
The 'hill' paddock with Axis deer, cranes etc as described by ffbird.
Bird House. The macaws and cockatoos chained on perches- the perches would be hung on hooks in the Cedar tree outside when weather was fine( now the area of the splashplay area.)
The Lake- Pelicans plus there was a flock of geese including barheaded, snow + hybrids and Magellans- some were full-winged and would fly around sometimes.
Two sets of aviaries. One was called the 'Dalton Burgess' aviaries but can't remember if it was the upper or lower ones. Lower one is still there(or similar on same site) Upper one contained, in different sections; foreign finches; flock of budgies; pair of ravens; ground hornill; pair of gibbons including dangerous female Pileated called 'Blackie' and semi-blind Grey male ' blind Pugh'.
The central lawns with huge crowds of picknickers in summer.
The kiosks/zoo shop in the central office building selling ice creams, postcards etc.
Guthrie Road entrance- much quieter, no/less queues.
Lastly- the bell of Clifton College across the road- 'dingdong' on the hour...