Ceratophyllus borealis , also known as the boreal flea, is an ectoparasite of birds. It is a black species found on ground-nesting birds such as pipits, wheatears and wagtails.[1]
References
^Rothschild, Miriam; Clay, Theresa (1953). Fleas, Flukes and Cuckoos. A study of bird parasites. London: Collins. p. 110–111.
