@article {591,
	title = {Ectoparasites from Skokholm bird observatory.},
	journal = {Nature in Wales 1(3): 128-130.},
	year = {1955},
	pages = {509},
	author = {Thompson, G. B.}
}
@article {596,
	title = {Ectoparasites from Skokholm Bird Observatory.},
	journal = {Nature in Wales 1(3): 128-130.},
	year = {1956},
	pages = {512},
	author = {Thompson, G. B.}
}
