vi Contents of Volume XXIX. 



an Insect Outbreak in California, 416; Economic Ornithology 

 in Recent Entomological Publications, 416; The Food of Birds 

 in Scotland, 417; Scott and Sharpe on the Birds of Patagonia, 417; 

 Kuser's 'Birds of Somerset Hills,' 418; Murphy on Birds of 

 Prospect Park, Brooklyn, 418; Bragg's Supplement to the Birds 

 of South Carolina, 418; Todd on New Neotropical Birds, 419; 

 Coward's 'The Migration of Birds,' 419; 'Oologica Neerlandica,' 

 420; Morse's 'Pocket List of Birds of Eastern Massachusetts,' 

 420; The Ornithological Journals, 420; Ornithological Articles 

 in other Journals, 426; Publications Received, 426. 



CORRESPONDENCE. 



Sclater's Contour Map of Colorado, 429; A Correction, 429; Con- 

 cealing Coloration, 430. 



NOTES AND NEWS. 



The A. O. U. Check-List and Uniformity in Nomenclature, 431; 

 Obituary: Alfredo Duges, 434; Eugene W. Oates, 434; The 

 American Museum's Colombian Expedition, 434; Book Notices, 

 435; The Thirtieth Stated Meeting of the A. O. U., 435. 



NUMBER IV. 



Page 



The Freezing of Cayuga Lake in its Relation to Bird Life. 



By Aluin R. Cahn. (Plates XVI-XX) 437 



The Niagara Swan Trap. By /. H. Fleming .... 445 



Methods of Estimating the Contents of Bird Stomachs. By 



W. L. McAtee 449 



The Breeding Birds op Southern Center County, Pennsyl- 

 vania. By Richard C. Harlow 465 



Some Observations on the Life-history of the Red-breasted 

 Merganser, Mergus serrator Linn. By R. M. Strong. 

 (Plates XXI-XXIII) 479 



Remarks on the Case of Roosevelt vs. Thayer, with a few 

 Independent Suggestions on the Concealing Coloration 

 Question. By Francis H. Allen 489 



Birds Observed in Montgomery County, Virginia. By Ellison 



A. Smyth, Jr. (Plate XXIV) 508 



GENERAL NOTES. 



Laughing Gulls in Plymouth County, Mass., 531; Brown Pelican on 

 Pamlico Sound and at Durham, N. C, 531; The Man-o'-War- 

 bird {Fregata aquila) on the Coast of Georgia, 531; Mallard and 

 Black Ducks at Currituck, N. C, 533; Dispersal of the Australian 

 Duck (Anas superciliosa), 534; The European Teal (Nettion 

 crecca) again Returning to Wenham, Mass., 535; Northern Eider 

 in South Dakota; a new record for the interior of North America, 

 535; Records from Nippinickett Pond, Bridgewater, Mass., 536; 

 Carolina Rail (Porzana Carolina) in New Mexico, 536; Early Oc- 

 currence of the White-rumped Sandpiper {Pisobia fuscicollis) in 



