320 Chapman, Ornithology at the World's Fair. [q"^ 



persecutor, the House Sparrow; Cedarbirds feeding on elm 

 beetles; House Sparrows destroying peach blossoms; Bobolinks 

 in their summer dress, and also as Reed-birds in the rice-fields in 

 the fall ; Purple Grackles taking grubs from a lawn ; Crows in a 

 field of freshly sprouted corn ; Kingbirds devouring bees ; and 

 Cuckoos feeding on tussock moths. 



With each group is a map showing the habitat of the species 

 it accompanies, and a label which explains the economic relations 

 of the bird to man. 



There are also mounted specimens of Hawks and Owls and, 

 in desk-cases, skins and colored plates of these birds, surrounded 

 by samples of their food, as mammals, birds, insects, etc., and 

 labels giving the results of the examination of the contents of many 

 stomachs. The Crow is treated in the same manner, and the 

 numerous objects displayed form a striking synopsis of the food 

 of this omnivorous bird. 



As explanatory of the manner in which birds may be induced 

 to live near the habitation of man, models of bird-houses occupied 

 by our more familiar birds are shown, and suggestions for 

 encouraging the domesticity of birds are given. 



The faunal exhibit of this Division contains twenty-eight 

 large maps showing in detail the distribution of as many species, 

 genera, or sub-genera, a relief map showing the life-zones of 

 North America as they are defined by Dr. Merriam, and a model 

 showing part of the Great Basin slope of the Sierra Nevada 

 opposite Owens Lake, southern California, with the characteristic 

 birds and mammals of the region. This model is intended 

 especially to show the effect of climate on the distribution of life, 

 and is so effectively arranged that it explains itself at a glance. 

 In the foreground, at the base of the mountain, is the arid desert 

 region of the Lower Sonoran zone, with such characteristic species 

 as AmpJiispha bilineata, Geococcyx, Harporhynchus lecontei, 

 Campylorhynchus, and Callifcpla gambeli. Passing upward 

 into the sage-brush of the foothills, the Upper Sonoran zone is 

 reached. As representative birds of this zone Oroscofttes, 

 Spizella brewer/, Alelanerpes f. bairdi, C/wndestes, and 

 Aphelocoma %voodhoasei are shown. Still ascending, one comes 

 to the Boreal zone with its conifers and, as distinctive species, 

 Cyanocitta s. frontalis, Sialia arctica, Picicorvus, and 



