Jaf THE AUDUBON BULLETIN 
At intervals based on shortage of food, many northern birds move 
south in winter. Among these are the Evening Grosbeak, Redpolls, 
Pine Siskins and more rarely the Pine Grosbeak, and the Red, and 
White-winged Crossbills. Still more erratic are the Bohemian Wax- 
wings. The food found in winter in the Chicago region consists of 
such dry seeds as ash and sugar maple, pulpy fruits of high bush cran- 
berry and nannyberry, privet berries and certain hawthorn fruits that 
persist through the winter. For the Crossbills, along the North Shore 
and in the Waukegan Flats, there are many pines, and in many large 
grounds mature Norway spruce, and other conifers, whose cones con- 
ceal beneath their scales the seeds that are the favorite food of Crogs- 
bills. 
At the northeast edge of the Arboretum, along the Dupage river 
is a fine grove of black alders, appearing to be indigenous, but which 
are the offspring of a tree that was brought from the Black Forest in 
Germany almost 100 years ago, and planted on the upper Dupage. 
When the tree reached bearing age its seeds floated down the Dupage 
river starting many groves, the finest of which is the one above men- 
tioned. Here in the winter and early spring one is almost certain to 
find flocks of Redpolls and Pine Siskins feeding on seeds of the alders. 
In January of 1934, the writer with two other bird fans after a 
hike through the east section of the Arboretum, on their way out to 
the Ogden Avenue entrance met friends from Hinsdale who reported 
having seen a pair of strange birds feeding on high bush cranberries. 
We soon located the birds and were greatly thrilled when we discovered 
a beautiful pair of Pine Grosbeaks. This was a treat for all of the 
party as they were so tame they permitted close inspection. While an 
accurate list is not available of the birds known to visit the arboretum 
during the year, the list would no doubt be a large one. 
On Dec. 29, Frank Pitelka, a very keen observer, scouted a trail 
through the Arboretum for the Chicago Prairie Club’s New Year’s 
Day hike. 
At the writer’s request he made a list of the birds seen and the 
number of individuals of each species, which is given in the Christmas 
census over his own name. The high spot of his list was a pair of 
White-winged Crossbills, which were found feeding on the seeds of 
hemlock along the south shore of Lake Marmo. 
In connection with the Arboretum there has recently been com- 
pleted a beautiful Administration building as a memorial to her father 
by Mrs. Joseph M. Cudahy of Lake Forest. The building is exquisitely 
furnished in rare woods, and contains besides the administrative of- 
fice, a wonderful library and herbarium. Beginning with J. Sterling 
Morton, the founder of Arbor Day, and a pioneer in reforestation, his 
son Joy continued the work on a much larger scale, and now Joy Mor- 
ton’s daughter, as chairman of the Board of Trustees will supervise 
the future of this great project, the greatest of its kind in the United 
States. 
ORPHEUS MOYER SCHANTZ. 
