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Totals Derby Hill Bird Observatory, Mexico (NY) 2025
Species
Mar
Apr
Totals
SW
NE
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Black Vulture
2
1
3
0
3
2 (
19 Mar
)
4
2
19 Mar
3 Apr
2.
Turkey Vulture
15177
14047
29224
0
29224
4136 (
31 Mar
)
90
44
6 Mar
19 Apr
3.
Osprey
33
115
148
0
148
22 (
19 Apr
)
51
25
18 Mar
19 Apr
4.
Golden Eagle
50
20
70
0
70
9 (
13 Mar
)
45
22
3 Mar
19 Apr
5.
Sharp-shinned Hawk
433
1698
2131
0
2131
601 (
19 Apr
)
71
35
8 Mar
19 Apr
6.
Cooper's Hawk
230
72
302
0
302
44 (
19 Mar
)
84
41
3 Mar
19 Apr
7.
American Goshawk
1
3
4
0
4
2 (
19 Apr
)
6
3
6 Mar
19 Apr
8.
Northern Harrier
193
359
552
0
552
70 (
19 Apr
)
84
41
4 Mar
19 Apr
9.
Bald Eagle
171
137
308
0
308
27 (
19 Apr
)
80
39
1 Mar
19 Apr
10.
Red-shouldered Hawk
718
58
776
0
776
242 (
19 Mar
)
69
34
4 Mar
19 Apr
11.
Broad-winged Hawk
0
21368
21368
0
21368
19642 (
19 Apr
)
14
7
10 Apr
19 Apr
12.
Swainson's Hawk
0
1
1
0
1
1 (
12 Apr
)
2
1
12 Apr
12 Apr
13.
Red-tailed Hawk
1115
781
1896
0
1896
262 (
19 Mar
)
88
43
1 Mar
19 Apr
14.
Rough-legged Buzzard
49
9
58
0
58
10 (
19 Mar
)
41
20
2 Mar
19 Apr
15.
American Kestrel
110
230
340
0
340
86 (
18 Apr
)
59
29
10 Mar
19 Apr
16.
Merlin
16
26
42
0
42
5 (
5 Apr
)
37
18
9 Mar
19 Apr
17.
Peregrine
5
4
9
0
9
1 (
10 Mar
)
18
9
10 Mar
19 Apr
Species
Mar
Apr
Totals
SW
NE
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
18303
38929
57232
0
57232
100
49
Observation hours
235:00
155:45
390:45
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