,5602 Colymbus occipitalis 
occipitalis. XQpHT&J d 103.0 it. 
C arhue, 
Buenos Aires 
Dec.16,1920 
8:45 Swimming 
' 5603 Colymbus occipitalis 
oarhue. 
iyec.16,1920 
Jr 
r 
occipitalis . * 
102.6 
J &. 
Buenos Aires 
8:45 
owi mming 
* 5161 
Aechiuonhorus ma j or • . cf 
103.1 
R. 
Lavalle, 
Oct.25,1920 
Buenos Aires 
3:30 
Diving 
48^ 
Jt 
✓ 5162 
Aechmophorus major., cf 
102.9 
E. 
Laval le, 
Oct.25,1920 
Buenos Aires 
3:30 
Diving 
48 
s 
* 5163 
Aechmophorus major.. 2 
104.0 
it. 
Lavalle, 
Oct.25,1920 
#■ 
Buenos Aires 
4:30 
Diving 
48 
46 
vigua, 
<■* Vy C'X ua 
5185 Phalacrocorax vigua 
vigua. 
F 5235 Rycticorax nycticorax 
naevius-. iHTWJVJW' 
^ 5903 Butorides striatus, 
(. 
V * ■ 
^ 4698 dyrigma sibilatrix 
d 103.6 R. 
Formosa 
7:30 
* 
flying 
53 
ijaval le, 
uct.28 ,1920 
I 
d 109.6 R. 
Buenos Aires 
9:30 
Flying 
! S3 
j 
9 104.5 R. 
* 
Lavel le, 
Buenos Aires 
Oct. 31,1320 
11:30 
Flying 
jr 
54 
2 im. 105.9 R.* 
San Vicente, 
°4HMRPgF, Rocha 
Jan.31,1921 
11*115 
Flying 
( 
55 
d ad. 104.8 R. 
Las Palmas 
Ghaco. , 
July 22,1920 
8:15 
At re st 
m 
. £ 
56 
/4956 ^ rl e» sibilatrix.... 9 
5025 
d ad. 105.2 R. niacho Pilaga, Aug.9,1920 
Formosa 12:30 Flying 
‘ 4955 Stigma sibilatrix a 
o TOP *7 'p *r^ , 
* 7 B ‘ ^ ert0 ^asco Sept .10,1920 
j. mHmS | |WK| | | | Paraguay 8:15 At rest 
1C2 * 8 ** ^ ert0 P^ascQ sept.10,1920 
Paraguay 8:15, Atrest 
101.4 R. Puerto .einasco, £ept.l 7 1920 
' _ ParaCW 11.00 M rest 
10S.7K. Puerto Plnaaco, sept.20,1520 
- • 6:45 p.M. plying 
104.7 R. Puerto Pinasco, Sept. 23 ,l 9 o 0 
_I Jl “W 1<00 it rest 
^ 5226 Ixobrychus involucris. ,d ad. 104.0 R. Lavalle, n „ + «*, . _ 
i au . .a **s _ . wot:. si, 1920 
Buenos Aires 10-00 
iigrisoma marmoratum $ 
*■5064 i 1 igrisoma marmoratum... cf 
✓ /, 5080 Tigrisoma marmoratum? 2 
Flying 
Nov. 2,1920 
104.0 a. San Vicente, Jan.31,1921 
rrr 
56 
56 
56 
58 
58 
4 . 
58 
60 
t/5261 Ixobrychus involucris. d ad. 103.6 R. Lavalle, 
Buenos Aires .. 8:45.. Flying 60 
P 5895 mycteria americana.... d 
- 
(. V. 
v' 5183 Luxenura galate a. C 
tJ 
5184 Euxenura galatea.V 
VlHfiV'tAocha 
10:30 
1 
Plying 
60 
Lavalle, 
Buenos Aires 
Oct .28,192 0 
10:15 
Plying 
61 
La val le, 
Buenos Aires 
Oct.28,1920 
10:15 
Flying 
J 
61 
