Breeding bird survey (1995-) 3200 Consistent, Random Transect Territory Common bird census (1970-2000) 300 Consistent, Non-random mapping Seabird monitoring programme, (1986 -) Species Consistent, Non-random or Colony counts seabird censuses (1969 ,85,00) specific Total Birds Wetland bird survey (1970-) 3000 Consistent, Non-random Site counts Site counts and Species Some variation over time, Rare birds breeding panel (1970-) individual specific all or most known sites records Species Consistent, stratified Various, SCARABBS (1974-) specific random transects
Birds Breeding bird survey (1995-) 3200 Consistent, Random Transect Common bird census (1970-2000) 300 Consistent, Non-random Territory mapping Seabird monitoring programme, (1986 -) seabird censuses (1969 ,85,00) Species specific Consistent, Non-random or Total Colony counts Wetland bird survey (1970-) 3000 Consistent, Non-random Site counts Rare birds breeding panel (1970-) Species specific Some variation over time, all or most known sites Site counts and individual records SCARABBS (1974-) Species specific Consistent, stratified random Various, transects
biyp2014_C4a_TechBG_final.docx