Fog brings migration to an abrupt stop, although local birds may fly about 

 their familiar home ranges except in the heaviest mist. 



Though the migrants remained immobile this foggy morning, there was 

 some movement of local birds about the home range. Franklin's Gulls, which 

 had become established at Delta, were on the wing in small numbers, 

 always within sight of the marsh. Local waterfowl took flight at my ap- 

 proach, and a pair of nesting Crows flew back and forth between two clumps 

 of trees which were separated beyond the range of human visibility. In 

 short, local movements may continue except in the densest fog, but the 

 migrant delays its journey until the weather clears. 



Trautman (1940:96), who watched the migrations so faithfully at Buck- 

 eye Lake, says that "the one climatic condition which caused birds to alight 

 was fog. Geese are apparently greatly disturbed or incapacitated for migra- 

 tion by fogs, and when a fog occurred as the main flight was passing through 

 the area, many of the birds were forced to earth. A notable example of this 

 occurred on the night of October 21-22, 1925. A mammoth flight of geese 

 was caught in a fog which apparently forced many or possibly all of the 

 birds to alight. On the morning of October 22, individuals and groups of 

 confused geese were scattered over eastern Ohio. Many had alighted in 

 cities, where some of the more bewildered ones were found wandering about 

 the streets, in the ponds of the city parks, and upon the roofs of buildings. 

 Various observers estimated that the Buckeye Lake area had between five 

 hundred and five thousand individuals. The geese remained in the area until 



165 



