Fairly common resident.

In the nineteenth century Green Woodpeckers were uncommon as breeding birds in Hertfordshire. At that time, they were also persecuted by Game Keepers.

Foster (1914) recorded that they had been seen at Stevenage.

Not confirmed as breeding at Stevenage by the 1973 Breeding Atlas, they remained an uncommon Bird in North Hertfordshire until the late 1980’s.

The records for the 1960s and 1970s are: Heard at Astonbury 26 May 1966; seen in a Lodge Way Garden 22 December 1966; Astonbury Park 15 March 1967; heard Shephalbury Park 27 April 1967; Astonbury 8 April and 11 May 1968, January to May 1969; Watery Grove 17 April and 27 May 1971, 10 December 1972; Astonbury 31 March and 17 June 1973, 19 and 21 January, 11 May 1974; three Hertford Road Area 1974; Watery Grove 2 March 1976; Astonbury 1977, 1978, 1979; Watery Grove 1979; Box Wood 1979; Fairlands Valley 1979.

The only records for the 1980s came from Box Wood 1981, 11 May 1985, 12 and 19 April 1986.

During the 1990s they were recorded from: Ashtree Wood, Aston, Astonbury Wood, Aston End, Edmonds Drive, Fairlands Valley Lakes, Monks Wood, Norton Green Tip, Watery Grove, Whomerley Wood, Wiltshire Spring.

The 1992 Breeding Atlas confirmed breeding from the tetrad covering Box Wood, the 2012 Atlas confirmed breeding from four tetrads (Boxbury Farm, Norton Green, Aston, Bragbury End).

Recently fledged young have been seen at Aston End in 2020, Fairlands Valley in 2015, 2017, 2018, 2019 and 2022 and, at Norton Green Tip in 2015, 2016, 2018 and 2020.

The 2012 Winter Atlas confirmed their presence from nine of the tetrads covering Stevenage.

The most seen together are five at Norton Green Tip on 27 September 2008.

At Watery Grove the Common Bird Census recorded one breeding territory being held in 1973, but did not record them again until 1991. From 1991 to 1999 their presence was recorded during the breeding season, with one breeding territory held in 1994 and 1999.