Red = breeding confirmed
Orange = breeding probable
Yellow = breeding possible
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Blackcap – 1968-72 breeding
Tag: 1977 BTO breeding atlas
Blackbird – 1968-72 breeding
Red = breeding confirmed
Orange = breeding probable
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Bullfinch – 1968-72 breeding
Red = breeding confirmed
Orange = breeding probable
Yellow = breeding possible
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Black-headed Gull – 1968-72 breeding
Red = breeding confirmed
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Blue Tit – 1968-72 breeding
Red = breeding confirmed
Yellow = breeding possible
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Buzzard – 1968-72 breeding
Red = breeding confirmed
Orange = breeding probable
Yellow = breeding possible
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Carrion Crow – 1968-72 breeding
Red = breeding confirmed
Yellow = breeding possible
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Cormorant – 1968-72 breeding
Red = breeding confirmed
Yellow = breeding possible
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Corn Bunting – 1968-72 breeding
Yellow = breeding possible
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Chiffchaff – 1968-72 breeding
Phylloscopus collybita – SIFF-SAFF/SIFF SIAFF – Breeding summer visitor, passage migrant and winter visitor
Red = breeding confirmed
Orange = breeding probable
Data collected by volunteers for the BTO. Sharrock, J.T.R., (1977). The Atlas of Breeding Birds in Britain and Ireland. T. & A.D. Poyser.
Pembrokeshire Avifauna 