Very rare visitor
One record: One grounded by heavy rain showers was found in the Tesco Superstore Car Park in the Town Centre, where it spent a few hours on 11 September 2025.
BAR-TAILED GODWIT (Limosa lapponica)
Author: aford1954
AVOCET (Recurvirostra avosetta)
Very rare passage migrant
A probable one was heard calling at night over Chells Manor on 10 May 2025.
[AUSTRALIAN ZEBRA FINCH (Taeniopygia castanotis]
One was seen at an unrecorded location on 30 August 2024.
[ thought or known species of introduced or captive origin ]
GREY PLOVER (Pluvialis squatarola)
Very rare visitor
One record: one at Fairlands Valley Lakes on 2 November 2024.
SANDERLING (Calidris alba)
Very rare visitor
One Record: One at Fairlands Valley Lakes on 1 June 2023.
KITTIWAKE (Rissa tridactyla)
Very rare passage migrant
Two records from Fairlands Valley Lakes, an adult on 18 April 2023 and one on 24 February 2026.
[LESSER WHISTLING DUCK (Dendrocygna javanica)]
One was at Fairlands Valley Lakes on 17 June 2022.
[ thought or known species of introduced or captive origin ]
PINTAIL (Anas acuta)
Very rare visitor
Two records from Fairlands Valley Lakes, a pair seen on 21 February 2021 and a drake on 22 December 2023.
YELLOW-BROWED WARBLER (Phylloscopus inornatus)
Very rare passage migrant
One was in a Pin Green garden on 29 September 2019.
GREAT WHITE EGRET (Ardea alba)
Very rare visitor
An increasing visitor to Britain from the continent, that has bred. The first one seen in Hertfordshire was at Wilstone Reservoir, Tring on 28 April 2001.
Four records: two flying over a Great Ashby Garden on 19 June 2020, one flying over an Old Town Garden on 20 November 2022, single birds flying over Fairlands Valley Lakes on 3 December 2023 and one flying over Fairlands Farmhouse on 1 September 2024.
The History of the Birds of Stevenage 