LESSER TERN. 



527 



more uniform in colour on the nape, and darker ; back, 

 wing-coverts, and tertials ash grey, margined with dusl^y 

 black ; primaries slate grey, margins of the inner webs 

 white ; secondaries ash grey ; tail-feathers spotted with 

 dusky grey towards the ends ; chin, sides of neck, breast, 

 and all the under surface white ; legs pale brown. 



