CONCORD 
Spent forenoon at Ball’s Hill, where the Nashville 
Warbler and Oven-bird were noted. There was also a Solitary 
Vireo in full song and in the afternoon I saw another in 
the orchard at the Farm. 
At about 8 A. M. a Bald Eagle with white tail but 
apparently dark head appeared over the Hill, soaring in 
circles at an immense height — fully 5000 feet, I should 
say, for the bird looked scarce larger than a Pigeon. With 
it was an adult Herring Gull which kept rising above and 
stooping down at it, uttering its shrill cleur-cleur-cleur- 
cleur at each swoop. The Eagle paid no apparent attention 
to its attacks but continued to swing around and around in 
graceful circles. 
Lawrence’s son told me to-day that his brother 
caught a young Great Horned Owl in the pine woods by the 
river (where I found the two young in 1899) last Sunday 
(May 5th). It was out of the nest and perched in a tree, 
but still in the down and unable to fly. He has it in a 
cage at the Farm, 
Vegetation advanced r apidly to-day, but it is still 
very backward. The white willows showed green foliage this 
evening. 
