Decline in farmland bird populations - Earth Sciences bibliographies - in Harvard style

In-text: (British Trust for Ornithology, 2010)

Your Bibliography: British Trust for Ornithology, 2010. BTO - Breeding Birds of the Wider Countryside: Jackdaw. [online] Bto.org. Available at: <http://www.bto.org/birdtrends2010/wcrjackd.shtml> [Accessed 15 March 2015].

In-text: (British Trust for Ornithology, 2010)

Your Bibliography: British Trust for Ornithology, 2010. BTO - Breeding Birds of the Wider Countryside: Woodpigeon. [online] Bto.org. Available at: <http://www.bto.org/birdtrends2010/wcrwoodp.shtml> [Accessed 15 March 2015].

In-text: (British Trust for Ornithology, 2010)

Your Bibliography: British Trust for Ornithology, 2010. BTO - Breeding Birds of the Wider Countryside: Tree Sparrow. [online] Bto.org. Available at: <http://www.bto.org/birdtrends2010/wcrtresp.shtml> [Accessed 18 March 2015].

In-text: (Department of Environment, Food and Rural Affairs, 2003)

Your Bibliography: Department of Environment, Food and Rural Affairs, 2003. ARCHIVE: UK Defra | e-Digest Environment Statistics, Land Cover, Land Use. [online] Archive.defra.gov.uk. Available at: <http://archive.defra.gov.uk/evidence/statistics/environment/land/ldcslandsc.htm> [Accessed 24 March 2015].

In-text: (Department of Environment, Food and Rural Affairs, 2014)

Your Bibliography: Department of Environment, Food and Rural Affairs, 2014. The new Common Agricultural Policy Please read this important information schemes in England: August 2014 update. Department of Environment, Food and Rural Affairs, p.28.

In-text: (Game and Wildlife Conservation Trust, 2013)

Your Bibliography: Game and Wildlife Conservation Trust, 2013. Farmland food webs - Game and Wildlife Conservation Trust. [online] Gwct.org.uk. Available at: <http://www.gwct.org.uk/research/habitats/farmland/farmland-food-webs/> [Accessed 16 March 2015].

In-text: (RSPB, 2008)

Your Bibliography: RSPB, 2008. Tree sparrow. [online] The RSPB. Available at: <http://www.rspb.org.uk/forprofessionals/farming/advice/details.aspx?id=204045> [Accessed 16 March 2015].

In-text: (RSPB, 2014)

Your Bibliography: RSPB, 2014. Farmland bird numbers continue to fall. [online] The RSPB. Available at: <http://www.rspb.org.uk/news/details.aspx?id=355662> [Accessed 21 March 2015].

In-text: (RSPB, 2014)

Your Bibliography: RSPB, 2014. The Farmland Bird Indicator. [online] The RSPB. Available at: <http://www.rspb.org.uk/forprofessionals/farming/whyfarming/whyfarming/fbi/> [Accessed 12 March 2015].

In-text: (University of Reading, 2007)

Your Bibliography: University of Reading, 2007. Farming and Habitats. [online] Ecifm.rdg.ac.uk. Available at: <http://www.ecifm.rdg.ac.uk/habitat.htm> [Accessed 14 March 2015].