102 PALLAS'S LOCUSTELLE. 



It was however erased from the European list by 

 ScUegel, upon very mucli the same kind of evidence 

 which induced that distinguished ornithologist to deal in 

 like manner with Falco leucoceplialus , and it is left out 

 by Degland upon this authority. 



It has however recently come to light in that singular 

 island Heligoland, where so many new birds, especially 

 American forms, have been added to the European list. 

 It was found by Herr Gatke, and has been introduced 

 into ■ the list of Birds new to Europe, described by Pro- 

 fessor Blasius, in Naumannia, for 1858, p. 311, in the 

 following words: — '' Calamoherpe certhiola is a perfect 

 gem in its new plumage; and here for the first time 

 found in Europe. There are two specimens mentioned 

 by Middendorf, as having been killed on the shores of 

 the Sea of Ochotzk. Before these specimens were found, 

 the original from Pallas, in the Berlin Museum, was the 

 only one known." 



Of this rare bird then there are it appears only four 

 specimens in existence, a fact which is perhaps sufficiently 

 accounted for by its similarity to the Grasshopper War-- 

 bier, whose well-known retiring habits fortunately pro- 

 tect it from wholesale destruction, and make it even a 

 rare bird. 8. certhiola is no donbt closely allied to 

 Locustelle, both in organization and habit. It is only 

 distinguished by its stronger beak, by the posterior claw 

 being in Certhiola longer than the toe, and more curved, 

 while in Locustelle the claw is shorter than the toe. 

 Purther, the tail of the latter is unicolorous; while 

 in the former, as seen by the specific characters at the 

 head of this notice, each tail quill is terminated below 

 by a large ashy blotch. In all other respects the dis- 

 position of colours in the plumage of the two birds is 

 the same. 



