A recent episode of the BBC's Countryfile featured Hertfordshire's River Mimram as part of a segment on chalk streams. During the piece a colour ringed Little Egret - '9/9' - made an appearance. 
This bird was ringed at HMWT's Lemsford Springs as an adult on 3 November 2015 and has been re-sighted on 513 days since then making him the 'most observed' Herts ringed Little Egret!
Most of the re-sightings have been around Lemsford Springs but also quite a few have been received from the Hertford area between April and June suggesting he may be breeding at the Amwell NR colony.
Quite a local celebrity!
Here are a few other Hertfordshire Little Egret facts & figures:
First Herts record : 1956 Old Parkbury Gravel Pit (just one other record up to 1983)
Records every year from : 1994
First confirmed breeding : 2011 at Amwell NR, Stocker's Lake and Tring Reservoirs
Number of recorded nests 2021 : 46 across five breeding sites
First Herts colour ringed bird : 2006
Number of colour ringed birds 2006 - 2022 : 108 : 18 at Lemsford Springs and 90 chicks in nests from Verulamium Park & Stanborough Lakes
Furthest ringing recoveries:
Verulamium: The Azores, November 2018, 2,550km from Verulamium!
https://www.hnhs.org/herts-bird-club/news/herts-little-egret-recorded-azores
Lemsford Springs: Dublin, June 2007
Other notable recoveries : Abberton Reservoir Essex, Carmarthen (Wales), Ipswich, Hickling Broad Norfolk, Derby, Coventry & Southampton (same bird), Preston, Leeds, Shrewsbury, Sunderland.
When to see them : all year around
Where to see them : widespread where water exists including lakes/large ponds, rivers & streams
