64 
THE CONDOR 
I Voi,. V 
The next day all the eggs had hatched and we found both parents busily en- 
gaged in carrying food to the young. As soon as the mother fed her offspring she 
brooded them till the father appeared with food, then he would in turn care for 
and protect the young from the cold. So during the entire day each performed 
an individual share in household 
duties. Often both parents were 
at the nest together, but at such 
times fortune did not favor us in 
getting a photograph. We 
were able to picture the mother, 
however, as she paused just for an 
instant beside the nest after feeding 
her young and again just as she 
reached under the protecting roof 
to feed the nestlings. In these 
pictures a distinct lacking of the 
wing bars will be noticed, which 
is a peculiar mark of the Cassin 
vireo. The other distinguishing 
mark, a white streak through the 
eye is readily told from the orbital 
ring about the eye of the other 
vineo. 
PHOTO BY H. T. BOHLMAN 
CASSIN VIREO AT NEST. 
A Remarkable Flight of Louisiana Tanagers. 
BY W. OTTO EMER.SON, HAYWARDS, CAE. 
O NE of the most wonderful occurrences of the movements of birds in the sea- 
son of migration which ever came under my notice, took place at Hay- 
wards during May, 1896, when countless numbers of Piranga ludoviciana, 
or Louisiana tanagers, began to make their appearance between May 12 and 14. 
From the i8th to the 22nd they were to be seen in endless numbers, moving off 
through the hills and canyons to their summer breeding range in the mountains. 
This continued till the 28th, and by June i only here and there a straggling mem- 
ber of the flock was to be seen. 
They were first found feeding on early cherries, in an orchard situated along 
the steep bank of a creek, on the edge of rolling hills, well covered with a thick 
young growth of live oaks, which faced the orchard on the east. To this thick 
cover they would fly, after filling themselves with cherries, and rest till it was time 
to eat again. This they would keep up from daylight till dark, coming and going 
singly all day, without any noise whatever being heard. 
Two men were kept busy shooting them as fast as they came into the trees 
which lay on the side next to the oak-covered hills. The tanagers at first seemed 
to take no notice of the gun reports, simply flying to other parts of the orchard. 
During the first week one of the gunners took his stand at the other side of the 
orchard, along the creek bank, under some tall willows, where the birds would 
come and alight, after being shot at so often. After the first week, I found on go- 
