OUR GREATEST TR.W'ELERS 



189 



MAP TO EXPLAIN HOW THE GOLDEN PLOVER IS ABLE TO NAVIGATE TO THE HAWAIIAN 

 ISLANDS IN THE MID-PACIEIC (SEE PAGES 187 AND 188) 



The longest ocean trip without any possibility of resting is shown in this map. This is 

 the same distance as traversed by the Atlantic plover, but the latter can get to land when in 

 trouble. The dotted lines along the Arctic coast show the breeding range of the bird. 



the Midway Islands to Japan, it would 

 be natural that the place of alighting on 

 the Asiatic coast should be gradually 

 carried north and east until the direct 

 flight was made from the Midway Is- 

 lands to the Aleutians (No. 4). A natu- 

 ral and easy carrying of this line east- 

 ward would result in the present route 

 (No. 5) between Hawaii and Alaska. 



NEIGtIBORS AND STRANGERS 



Both the American and Pacific golden 

 plovers nest in Alaska near Bering Strait, 



the former on the north and the latter 

 on the south side of the strait. The 

 American bird reached there by a west- 

 ward extension from Canada, and the 

 Pacific b}' an eastward extension from 

 Siberia. The birds themselves are so 

 nearlv alike that only an expert can dis- 

 tinguish them; and, notwithstanding they 

 are such near neighbors during the sum- 

 mer — scarcely a hundred miles apart — 

 the beginning of migration makes them 

 utter strangers ; for those north of the 

 strait travel 3,000 miles east and then 



