- Twite numbers in England have been declining rapidly over the past 50 years.
- Surveys showed a decline of 72% in the number of breeding pairs of twite in England between 1999 and 2013.
- There has also been a decrease in their range, so they are now found at only a handful of breeding sites in the South Pennines.
- Reasons for the decline include reduced availability of seed, especially later in the breeding season. Typically, twite raise a second brood of chicks in early August, this is not happening in the South Pennines, possibly because there is not enough seed.
- Reduced availability of suitable nesting habitat, which is primarily mature heather or bracken, with more birds nesting in bracken, which may be more open to predation.
- Accidental and deliberate moorland fires. Accidental fires often occur through discarded cigarettes, campfires which have not been properly extinguished, or sometimes as a result of managed moorland burning getting out of control.