()h'//\n\ ch'oi r 



(>7 



were i-('i)r()(lii('(Ml in tlic Museum laljoi'atoiics I'roiii iiiatcriiil collected in 

 th(> localities re|)reseiite(l. l']ach «»;r()U|) is fully descrihed in tlic label 

 attacluMl to the case. [See Cuidc Leaflets No. 28 and No. 22.] Be^in- 

 iiinj;- with the cas(» at the ii,<>;ht of the (uitrancc^ and passinp; on to th(; 

 nij>;ht around the hall, we find the ^r()ui)s arranged in th(i following!; 

 s(Hi|iicncc: 



The distribution of birds, notwithstandinji; their powers of flight, is 

 liniit(Hl in «i;reat nu^isure by climate. Thus in traveling;' from Panama 

 north to OrcHniland there are zones of bird life correspond- 

 in<2; to the zon(\s of t(Mn])erature. This condition is illus- 

 trated in the mountain of Orizaba in Mexico, where in 

 trav(^lin<>; from the tropical jun«2;le at its })ase to its snow clad peak the 



Orizaba 



Group 



White pelican from Klamath Lake Group, Oregon, One young bird is illustrating its 

 amusing method of procuring food from fts parent's throat. 



naturahst finds zones of Hfe comparable with those to be found in travel- 

 ing north on the continent. Thus the Orizaba group so far as the distri- 

 bution of hfe is concerned is an epitome of all the groups in the hall. 

 Among our most beautiful and graceful shore birds are the terns and 

 gulls, which (because of their plumage) have been so cease- 

 lessly hunted and slaughtered for millinery purposes that 

 now in their breeding places there are only hundreds where 

 formerly there were thousands. The group represents a section of an 

 island ofT the Virginia coast where the birds are now protected 

 bv law. 



Cobb's Island 

 Group 



