
 
		R O O K . 
 C orvus  frugilegus,  Linn. 
 L e   F re u x . 
 This familiar bird appears to be distributed over the greater part o f Europe, giving preference to those cultivated  
 portions which  afford it a supply of granivorous food, upon which it partially subsists,  and for which  it is generally  
 condemned by the husbandman as an injurious and destructive neighbour;  though, were the habits of the  
 Rook carefully  investigated, we doubt not it would be  satisfactorily  proved  that he amply  repays  the  farmer  
 for  the  few grains he steals,  by  the  destruction of  immense numbers of grubs and  insects which he devours  
 in  the course of a single year,  thus rather claiming our gratitude for his  services than deserving our enmity:  it  
 must be acknowledged,  too,  that its presence  helps  to enliven our fields and pastures. 
 The Rook  is  very  fastidious  in its  choice of  a  place for  performing  the  duties  of  incubation,  frequently  
 leaving  the  trees of the forest for those situated near our dwellings,  and,  in some  instances,  even  taking up its  
 abode  in  the midst o f towns and cities. 
 The adult Rook may at all times be readily distinguished from its near ally  the Crow by the naked face and  
 gular pouch, which  parts  have been divested of  their feathers  by the constant  thrusting of  its mandibles into  
 the earth in search  of food ;  its wings are also more  lengthened and pointed,  and the hue  of  the upper portion  
 o f its plumage  is more inclined  to purple. 
 The Rook is gregarious,  and in no country is  to be observed in greater numbers than in  the British Islands,  
 which afford it an asylum  congenial  to its peculiar  habits and mode of life.  It commences  the work of nidi-  
 fication in  the month of March, constructing a large nest o f sticks, lined with a coating o f clay and fine grasses.  
 The eggs are five  in number, o f a blueish green blotched with  darker stains o f brown.  The young  for the first  
 ten  or twelve months do not lose  the feathers which cover the nostrils ; and  during  this period  they so nearly  
 resemble  the Crow that a more than usually minute examination  is required to discover the difference,  though  
 a careful attention to  the peculiar form  of the bill will obviate any difficulty. 
 The sexes are so  strictly  similar  in  the colouring  of  their plumage  that  actual  dissection  is  requisite  to  
 distinguish  them. 
 Bill  and  feet  black;  the  whole of  the  plumage  black  glossed  with  changeable  hues  of green  and  violet  
 purple ;  feathers on  the back of the neck long and filamentous. 
 The Plate represents  an adult,  rather less than  the natural size.