DELAWARE VALLEY ORNITHOLOGICAL CLUB. 33 



half black and half white, the black and white being in solid 

 colors. One of the birds seemed to be an immature male. I 

 am aware that the authorities state that the male grosbeak 

 passes into full plumage after its first molting with no transi- 

 tion stage. This bird, however, I observed very closely for a 

 considerable length of time with a strong glass. The back was 

 yellowish instead of being gray like the females, and the wings 

 were of a dirty white color instead of being mottled black and 

 white as with the three females. Once the flock separated 

 and immediately began calling to each other from different 

 parts of the swale. Usually however they kept together, al- 

 though sometimes one female would perch in a tree some dis- 

 tance from the other four. While I was observing them I 

 heard the alarm-note of the Cardinal Grosbeak and suddenly 

 down the swale a fine specimen of the Cardinal appeared. By 

 turning my head I was able to compare the grosbeak of the 

 south with his brother of the north. The cardinal grosbeak 

 seemed much more alert and fuller of nervous energy than his 

 stolid relatives while his long tail and crest made him appear a 

 much longer, lither, more graceful bird. I note that at Kala- 

 mazoo, Michigan, an observer once found the evening and the 

 Rose-breasted Grosbeaks together. 



On April 14th I visited the run again in the afternoon but 

 found no grosbeaks. On April 15th I started to visit this little 

 valley which my children had christened Grosbeak Run. As I 

 came to the Haverford College station of the Philadelphia and 

 Western Railroad I heard from the Lombardy poplars beside 

 the tracks the familiar "pip, pip" of the evening grosbeak. 

 With some difficulty I finally located the bird which was calling, 

 a solitary female. Looking through the trees, I finally located 

 three more : another female, the immature male which I have 

 already described and the male in full plumage. It was un- 

 doubtedly the little flock from Grosbeak Run with one missing, 

 for when I went over there later in the morning I could find no 

 Grosbeaks. Against the light the head and neck of the male 

 seemed to be a dark brown with gold shades through it. Both 

 the male and female of the Grosbeaks seemed to give the same 

 call and equally often. The immature male was gray where 



