69 



HYPOTHETICAL LIST/ 



1. ^CHMOPHOKUS CLARKII (Lawr). 



Clark's Grebe. [B 705, C 6383, R 730, C 846.] 



2. CEPPHUS MOTZFELDI (Benick ). 



Black-winged Guillemot. [B — C — , R — , C — .] 



3. CEPPHUS CARBO Pai^i,. 



Sooty Guillemot. [B 728, C 633, R 762, C 873.] 



4. XEMA (CBEAGBUS) FUBCATA (Neb). 



Swallow-tailed Gull. [B 679, C 559, R 678, C 791.J 



5. DIOMEDEA EXULANS (Linn). 



Wandering- Albatross. [B — , C — , R — . C — .] 



6. PUFFINUS KUHLII (Boie). 



Cinereous Shearwater. [B 651, C 596, R 708, C 831.] 



7. OCEANODBOMA HOBNBYI (Gray). 



Hornby's Petrel. [B 641, C 592, R 727, C 827.] 



8. PHAIiACBOCOBAX PEBSPICILLATUS Pai,i<. 



Pallas's Cormorant. [B 621, C 533, R 648, C 756.] 



9. ARDEA WUEBDEMANNI Baird. 



Wurdemann's Heron. [B 488, C 450, R 486 part, C 656 part.l 



10. ABDEA (DICHBOMANASSA) PEALEI Bonap. 



Peale's Egret. [B 482, C 2,55 part, R i^^x part, C SSipart.^ 



11. TBINGA (ACTODBOMAS) COOPEBI (BaiRd). 



Cooper's Sandpiper. [B 527, C 422, R 535, C 618.] 



I Consisting of species wliich have been recorded as North American, but whose status as 

 North American birds is doubtful, either from lack of positive evidence of their occurrence 

 within the prescribed limits of the present Check-I,ist, or from absence of satisfactory proof of 

 their validity as species. 



