Bird -Lore's Fourth Christmas Bird Census 



There is every prospect that Bird-Lore's Fourth Christmas Bird Cen- 

 sus will exceed in interest any of the three that have preceded it. The 

 more northern birds have appeared in unusual numbers, and the cause or 

 causes accountable for their presence may induce the rarest of winter birds 

 to visit us. Already we have had reports of the occurrence of Evening 

 Grosbeaks, and we await their confirmation by other observers. 



Reference to the February, 1901, 1902, or 1903, numbers of BiRD-LORE 

 will acquaint one with the nature of the report of the day's hunt which 

 we desire; but to those to whom none of these issues are available we 

 may explain that such reports should be headed by a brief statement of the 

 character of the weather, whether clear, cloudy, raining, etc., whether the 

 ground is bare or snow-covered, the direction and force of the wind, the 

 temperature at the time of starting, the hour of starting and of returning. 

 Then should be given, in the order of the A. O. U. ' Check-List,' a list 

 of the species seen, with exactly, or approximately, the number of individuah 

 of each species recorded. A record should read, therefore, as follows: 



Yonkers, N. Y., Time 8 A. M. to 12 M. Clear; ground bare; wind west, 

 light; temperature 38°. Herring Gull, 75 ; etc. Total, — species, — 

 individuals. — James Gates. 



These records will be published in the February issue of BiRD-LoRE,. 

 and it is particularly requested that they be sent the editor (at Englewood, 

 N. J.) not later than December 28. 



A Book Exchange 



For the convenience of our readers we open Bird-Lore's pages, when 

 space permits, to announcements of nature books desired or offered for 

 exchange or sale. It is requested that all such announcements be type- 

 written and expressed in form similar to that given below. 



Bendire, ' Life -Histories of North American Birds,' Part IL Langille, 

 * Birds in their Haunts.' Goss, ' Birds of Kansas.' 



FOR SALE OR EXCHANGE 



Bendire, ' Life -Histories of North American Birds,' Part I, Newton, 

 Dictionary of Birds (unabridged edition). Wilson, American Ornitholgy, 

 Jardine edition, 1839. Coues, ' Key to North American Birds,' 1884 

 edition. 



Ralph Hoffmann, Belmont, Mass. 



(19+) 



