132 THE BIRDS OF SOMERSET HILLS 



IRREGULAR. 



Irregular indicates that at times the 

 bird may be Common, and at other 

 times Rare. Often this has to be 

 used in connection with one of the 

 other seven terms. In such a case 

 it is often necessary to add Usually, 

 as: Crossbill, Irregular, Usually 

 Rare. 



Of course it is not intended that these 

 terms should always be used by them- 

 selves. One may use them when neces- 

 sary in conjunction with other words as 

 Common Migrant, Scarce Resident, etc. 



