. 4 . 
Lanius borealis. 
jp. 
Mass . | 
March 9. Concord .- the conviction which I formed while watching the & 
/ ** 
(NO. 4) Shrike and Mouse struggling together viz. that the bird killed . eat . s .& 
I ^ J 
theMouse partly by throttling .— that is by choking and shaking Pi.old 
i t—and partly (perhaps chiefly) by cutting its neck open on Mousii. 
one side. Ho attempt was made to stun the blouse by striking 
at its skull, such blows as I saw delivered being evidently 
intended to keep the Mouse at bay until the Shrike could close 
1 7 " 
with it and get by the neck as it finally did. 
/v J 
While I was examining the Mouse the Shrike began uttering 
, / 
the Cat-bird-like cry among the. pines. This seemed to be clear- 
ly a remonstrance directed at me . I went to the spot and 
found the bird sitting low down amid dense pine foliage look- 
ing rather dumpy and unhappy. About an hour later I returned 
to the alders and examined the Mouse again. As far as I could 
detect it had not been touched in my absence. I did not see 
the Shrike again 
( y{jL v* / J oL >>■' , a ; - / ? r 7 • , J \ 
March 10. Visited the alder* thicket at 10 A. M.- and found the Mouse Shrike 
/ \ 
gone. As there were no tracks in the) snow beneath where it had retiirns 
hung I concluded that the Shrike must have returned and remove- to its 
ed it 
prey. 
