A trailblazing rewilding web site in England has recorded a 900% improve in breeding birds in simply 20 years, proving what’s doable when nature is given the area to get better
At first it was lifeless. “Depleted, polluted, dysfunctional” is how Isabella Tree describes the farm that she and her husband helped nature to recolonise.
Recolonise it has. In line with a two-decade ecological assessment of the Knepp rewilding property in Sussex, England – revealed this week – the three,500-acre web site has recorded a 900% improve in breeding birds.
Amongst them imperilled species such because the turtle dove (important image) and nightingale, which have skilled stunning declines throughout a lot of the UK, however noticed their numbers improve by 600% and 511% respectively at Knepp.
“The pattern is strongly optimistic and nonetheless growing 12 months on 12 months,” mentioned Fleur Dobner, a Knepp ecologist.
The assessment factors to “a dramatic restoration in wildlife”, revealing how butterfly numbers have doubled in some areas, whereas dragonflies and damselflies have elevated by almost 900%.
The transformation of Knepp from an unprofitable farm right into a biodiversity hotspot was outlined in Tree’s hit guide Wilding. She and her husband Charlie Burrell have labored with nature to create a haven for wildlife. Fences got here down and free-roaming animals had been launched, resembling English longhorn cattle, which fill ecological roles left by extinct animals.

A purple deer stag on the Knepp property in mating season. Credit score: Charlie Burrell/Knepp
“We’ve gone from a depleted, polluted, dysfunctional farmland to probably the most vital biodiversity hotspots within the UK,” mentioned Tree. “The uplift in biodiversity exhibits how a lot life the land can maintain.”
Tree believes that Knepp exhibits what’s doable elsewhere within the UK, which is among the world’s most nature-depleted nations.
“The UK has pledged to return 30% of land to nature by 2030, and it’s not occurring quick sufficient,” she mentioned. “Rewilding is a strong device to get nature again. We must be rather more formidable for our nature reserves and rewilding initiatives.”
Primary picture: Rudmer Zwerver/Shutterstock
Help options in 2026
At Constructive Information, we’re not chasing clicks or income for media moguls – we’re right here to serve you and have a optimistic social impression. We will’t do that until sufficient individuals such as you select to help our journalism.
Give as soon as from simply £1, or be a part of 1,800+ others who contribute a median of £3 or extra per 30 days. Collectively, we will construct a more healthy type of media – one which focuses on options, progress and potentialities, and empowers individuals to create optimistic change.



