FACING PAGE 



Les Timores (Duotone) 1312 



Surf-birds Flying (Duotone) 1332 



Surf-birds — The Parting Shot (Photogravure) 1336 



Black Oyster-catcher (Color-plate) 1346 



A Breeding Haunt of the Black Oyster-catcher (Duotone).. . 1352 



Gull and Surf (Duotone) 1366 



The Farallons (Duotone) 1376 



The Gray Lady (Duotone) 1380 



The Gentleman in Gray (Duotone) 1386 



N/3 Western Gull (Duotone) 1390 



The Hesperian Pinnacles (Duotone) 1392 



The Northward Faring (Duotone) 1396 



Portrait of California Gull (Duotone) 1398 



California Gulls at Paoha (Duotone) 1408 



Bonaparte's Gull (Color-plate) 1422 



Bonaparte's Gull on Estero Santa Barbara (Duotone) 1424 



Group of Bonaparte Gulls (Duotone) 1426 



Heermann's Gull (Color-plate) 1428 



Heermann Gulls (Duotone) 1430 



Elegant Tern (Color-plate) 1442 



Brown's Least Tern, at Nest (Duotone) 1452 



Ancient Murrelet (Color-plate) 1482 



Poseidon Club (Photogravure) 1494 



Tufted Puffin (Color-plate) 1506 



Tufted Puffins and Surf (Duotone) 15 14 



Adventure (Duotone) 1532 



XIV 



