House martin (Delichon urbicum) with mud for nest building, Dyfed, Wales. A parasitic louse-fly (Crataerina hirundinis) can be seen on the bird's back.

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Size: 5093px × 3372px
Location: Carew Tidal Mill, Pembrokeshire, Dyfed, Wales
Photo credit: © David Sewell / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aves, bird, carew, crataerina, delichon, dyfed, hirundiine, hirundis, house, louse-fly, martin, material, mill, mud, nesting, parasite, parasitic, pembrokeshire, tidal, urbicum, wales, welsh, wildlife