- 17:08, 22 January 2009 diff hist -71 Chapada Flycatcher
- 17:00, 22 January 2009 diff hist -6 Channel-billed Toucan
- 16:58, 22 January 2009 diff hist +210 Channel-billed Cuckoo
- 16:41, 22 January 2009 diff hist +286 Changeable Hawk-Eagle
- 16:33, 22 January 2009 diff hist -54 Chalk-browed Mockingbird
- 20:47, 21 January 2009 diff hist -200 Common Chaffinch
- 20:43, 21 January 2009 diff hist +150 Pampas Pipit
- 20:38, 21 January 2009 diff hist -1 Chaco Owl →Behaviour
- 20:38, 21 January 2009 diff hist -37 Chaco Owl →Identification
- 20:38, 21 January 2009 diff hist +446 Chaco Owl
- 20:27, 21 January 2009 diff hist -22 Chaco Nothura
- 20:23, 21 January 2009 diff hist +70 Chaco Earthcreeper
- 20:19, 21 January 2009 diff hist +1 Chaco Chachalaca →Distribution
- 20:19, 21 January 2009 diff hist +212 Chaco Chachalaca
- 19:28, 21 January 2009 diff hist +228 Chabert Vanga
- 19:20, 21 January 2009 diff hist +2 Sri Lanka Spurfowl
- 19:19, 21 January 2009 diff hist -21 Sri Lanka Junglefowl
- 19:17, 21 January 2009 diff hist -1,147 Cetti's Warbler
- 19:09, 21 January 2009 diff hist +5 Cerulean-capped Manakin
- 19:07, 21 January 2009 diff hist -641 Cerulean Warbler
- 19:01, 21 January 2009 diff hist +413 Cerulean Paradise-Flycatcher
- 18:54, 21 January 2009 diff hist +127 Cerulean Cuckooshrike
- 18:52, 21 January 2009 diff hist +99 Central American Pygmy Owl
- 18:47, 21 January 2009 diff hist -178 Celestial Monarch
- 18:46, 21 January 2009 diff hist +673 Celestial Monarch
- 18:10, 21 January 2009 diff hist -622 Cedar Waxwing
- 18:07, 21 January 2009 diff hist +368 Cebu Flowerpecker
- 18:02, 21 January 2009 diff hist +281 Cayenne Nightjar
- 17:30, 21 January 2009 diff hist +262 Cayenne Jay
- 17:24, 21 January 2009 diff hist +425 Cave Swallow
- 19:37, 20 January 2009 diff hist -88 Baer's Pochard
- 17:17, 20 January 2009 diff hist +453 Caucasian Snowcock
- 17:13, 20 January 2009 diff hist -1 Caucasian Grouse
- 17:12, 20 January 2009 diff hist +253 Caucasian Grouse
- 16:45, 20 January 2009 diff hist +285 Cauca Guan
- 16:37, 20 January 2009 diff hist +475 Cattle Tyrant
- 16:26, 20 January 2009 diff hist +258 Castelnau's Antshrike
- 16:20, 20 January 2009 diff hist +378 Cassin's Vireo
- 16:12, 20 January 2009 diff hist +38 Cassin's Spinetail
- 16:09, 20 January 2009 diff hist +366 Cassin's Sparrow
- 16:01, 20 January 2009 diff hist +60 Cassin's Kingbird
- 15:55, 20 January 2009 diff hist +170 Cassin's Honeybird
- 15:50, 20 January 2009 diff hist +135 Cassin's Hawk-Eagle
- 15:30, 20 January 2009 diff hist -1 Cassin's Flycatcher
- 15:30, 20 January 2009 diff hist +355 Cassin's Flycatcher
- 15:20, 20 January 2009 diff hist +320 Cassin's Finch
- 15:11, 20 January 2009 diff hist +456 Cassin's Auklet
- 15:03, 20 January 2009 diff hist +316 Casqued Oropendola
- 14:53, 20 January 2009 diff hist +388 Caspian Tit
- 14:48, 20 January 2009 diff hist 0 Caspian Tern →Habitat


