f 
Bonaparte * s , June 17, 1955, I* 
Watching birds on shore Dog Lake. All, apparently without ex- 
ception, are first— year *birds. Some are in almost complete nuptial 
plumage, some in somplete winter plumage. On the whole inactive; 
but they do react to my approach, occasionally chase each other or 
the Common Terns, and squabble over fence posts. 
Have noticed the following hostile patterns: 
A 
Aerial Lons Call Note. The buzz lest and twang! est note of all. 
Long drawn. Could be transcribed as something like "Kaa-aa-aa-aah or 
* Kaa- aa~ aanh* . 
Series of Lons Call N otes, in the air . Much shorter notes than 
the single Long Call Notes. Could be transcribed as n Kaaa-kaaa-kaaa- 
kaaa-kaaa. . « Also very buz zy and twangy. Uniform pitch. Done 
by swiftly flying bird, with beating wings apparently. (Rather different 
from the complete Long Call on the ground, which has the usual 
form, and stretches through the 0 and F postures). 
Alarm Call ? Very short, buzzy note, impossible to transcribe, 
given by "*f lying birds flying over me. 
•a, * ' 
Gakkering. Possibly given by flying bird, certainly by standing 
bird, during disputes in which one is trying to force the other off its 
fence cost. The standing bird gives it from a posture comme ca: 
H 
The sound itself can probably be transcribed as "KakakakakaKakakaka, *.» - 
with*the N UBual buzzy quality, but in a definitely less extreme degree. 
Is thi s the same sound I heard at Buffalo? 
Charge Ca ll . Like a single Long Call Note; but not at all P^ly~ 
syllabicV harsher, very little twang, almost a scream. Apparently 
accompanies the Swoop, 
\ > 
| r ’ j /* 1 f f ♦. « 
* ,^*4 ’ V ,-F 
W ^ t 
