Ben Cacace has been documenting Chimney Swift roosting sites in New York this year, and one of the roosts he’s been watching is the old Christian Science Church at 96th and Centra Park West. On the NW corner of building is a chimney that can be seen from the east side of Central Park West or the south side of 96th Street. I watched the roost this evening from Central Park West.

Ben pointed out to me how unique this roost site is because the chimney is lower that the buildings that surround it.

The timetable of the evening was:

• 6:41 pm, First Chimney Swift enters the roost. a very small early group
• 6:42 pm, Sunset
• 6:45 pm, Chimney Swifts start gathering over the park, and then begin to circle the roost
• 6:55-6:57 pm, Large group enters the roost
• 7:01 pm, Last Chimney Swift enters the roost

The timing of when they roosted varied greatly from the 944 Fifth Avenue roost. Counting was harder with this roost. I could have over counted, as it as impossible to tell if the birds were overshooting the roost and going behind the chimney.

Video	Time	Count	Running Total
0:00	6:41 PM	32	32
0:01	6:41 PM	1	33
0:02	6:41 PM	0	33
0:03	6:41 PM	0	33
0:04	6:42 PM	0	33
0:05	6:42 PM	0	33
0:06	6:42 PM	0	33
0:07	6:42 PM	0	33
0:08	6:43 PM	0	33
0:09	6:43 PM	0	33
0:10	6:43 PM	0	33
0:11	6:43 PM	0	33
0:12	6:44 PM	0	33
0:13	6:44 PM	0	33
0:14	6:44 PM	0	33
0:15	6:44 PM	0	33
0:16	6:45 PM	0	33
0:17	6:45 PM	0	33
0:18	6:45 PM	0	33
0:19	6:45 PM	0	33
0:20	6:46 PM	0	33
0:21	6:46 PM	0	33
0:22	6:46 PM	0	33
0:23	6:46 PM	0	33
0:24	6:47 PM	0	33
0:25	6:47 PM	0	33
0:26	6:47 PM	0	33
0:27	6:47 PM	0	33
0:28	6:48 PM	0	33
0:29	6:48 PM	0	33
0:30	6:48 PM	3	36
0:31	6:48 PM	0	36
0:32	6:49 PM	0	36
0:33	6:49 PM	0	36
0:34	6:49 PM	0	36
0:35	6:49 PM	0	36
0:36	6:50 PM	0	36
0:37	6:50 PM	0	36
0:38	6:50 PM	0	36
0:39	6:50 PM	0	36
0:40	6:51 PM	0	36
0:41	6:51 PM	2	38
0:42	6:51 PM	1	39
0:43	6:51 PM	0	39
0:44	6:52 PM	0	39
0:45	6:52 PM	1	40
0:46	6:52 PM	0	40
0:47	6:52 PM	1	41
0:48	6:53 PM	13	54
0:49	6:53 PM	0	54
0:50	6:53 PM	0	54
0:51	6:53 PM	0	54
0:52	6:54 PM	0	54
0:53	6:54 PM	2	56
0:54	6:54 PM	0	56
0:55	6:54 PM	1	57
0:56	6:55 PM	34	91
0:57	6:55 PM	9	100
0:58	6:55 PM	0	100
0:59	6:55 PM	48	148
1:00	6:56 PM	10	158
1:01	6:56 PM	4	162
1:02	6:56 PM	85	247
1:03	6:56 PM	86	333
1:04	6:57 PM	61	394
1:05	6:57 PM	58	452
1:06	6:57 PM	11	463
1:07	6:57 PM	90	553
1:08	6:58 PM	3	556
1:09	6:58 PM	1	557
1:10	6:58 PM	22	579
1:11	6:58 PM	9	588
1:12	6:59 PM	0	588
1:13	6:59 PM	0	588
1:14	6:59 PM	3	591
1:15	6:59 PM	1	592
1:16	7:00 PM	3	595
1:17	7:00 PM	4	599
1:18	7:00 PM	1	600
1:19	7:00 PM	2	602
1:20	7:01 PM	1	603
1:21	7:01 PM	0	603
1:22	7:01 PM	0	603
1:23	7:01 PM	1	604