Jim Moulton: Costa Rica Life List AORC, All records: Top Blockers Record(s) 1 to 202 of 202 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Muscovy Duck	Cairina moschata	85	70.83	
2	Gray-headed Chachalaca	Ortalis cinereiceps	95	79.17	
3	Crested Guan	Penelope purpurascens	99	82.50	
4	Black Guan	Chamaepetes unicolor	78	65.00	
5	Great Curassow	Crax rubra	70	58.33	
6	Red-billed Pigeon	Patagioenas flavirostris	96	80.00	
7	Band-tailed Pigeon	Patagioenas fasciata	74	61.67	
8	Short-billed Pigeon	Patagioenas nigrirostris	87	72.50	
9	Common Ground Dove	Columbina passerina	65	54.17	
10	Plain-breasted Ground Dove	Columbina minuta	28	23.33	
11	Ruddy Ground Dove	Columbina talpacoti	93	77.50	
12	Blue Ground Dove	Claravis pretiosa	30	25.00	
13	White-winged Dove	Zenaida asiatica	100	83.33	
14	Groove-billed Ani	Crotophaga sulcirostris	99	82.50	
15	White-collared Swift	Streptoprocne zonaris	84	70.00	
16	Gray-rumped Swift	Chaetura cinereiventris	68	56.67	
17	White-necked Jacobin	Florisuga mellivora	79	65.83	
18	Green Hermit	Phaethornis guy	89	74.17	
19	Long-billed Hermit	Phaethornis longirostris	84	70.00	
20	Stripe-throated Hermit	Phaethornis striigularis	82	68.33	
21	Lesser Violetear	Colibri cyanotus	90	75.00	
22	Green-breasted Mango	Anthracothorax prevostii	72	60.00	
23	Green-crowned Brilliant	Heliodoxa jacula	96	80.00	
24	Purple-throated Mountain-gem	Lampornis calolaemus	93	77.50	
25	Magenta-throated Woodstar	Philodice bryantae	60	50.00	
26	Violet Sabrewing	Campylopterus hemileucurus	98	81.67	
27	Crowned Woodnymph	Thalurania colombica	80	66.67	
28	Snowcap	Microchera albocoronata	48	40.00	
29	Coppery-headed Emerald	Microchera cupreiceps	88	73.33	
30	Rufous-tailed Hummingbird	Amazilia tzacatl	109	90.83	
31	Gray-cowled Wood-Rail	Aramides cajaneus	43	35.83	
32	Purple Gallinule	Porphyrio martinica	77	64.17	
33	Black-bellied Plover	Pluvialis squatarola	51	42.50	
34	Semipalmated Plover	Charadrius semipalmatus	62	51.67	
35	Northern Jacana	Jacana spinosa	102	85.00	
36	Whimbrel	Numenius phaeopus	86	71.67	
37	Spotted Sandpiper	Actitis macularius	100	83.33	
38	Magnificent Frigatebird	Fregata magnificens	108	90.00	
39	Anhinga	Anhinga anhinga	99	82.50	
40	Neotropic Cormorant	Phalacrocorax brasilianus	101	84.17	
41	Brown Pelican	Pelecanus occidentalis	107	89.17	
42	Great Blue Heron	Ardea herodias	91	75.83	
43	Great Egret	Ardea alba	107	89.17	
44	Snowy Egret	Egretta thula	104	86.67	
45	Little Blue Heron	Egretta caerulea	103	85.83	
46	Cattle Egret	Bubulcus ibis	103	85.83	
47	Green Heron	Butorides virescens	104	86.67	
48	Agami Heron	Agamia agami	12	10.00	
49	Yellow-crowned Night-Heron	Nyctanassa violacea	90	75.00	
50	Boat-billed Heron	Cochlearius cochlearius	83	69.17	
51	King Vulture	Sarcoramphus papa	76	63.33	
52	Black Vulture	Coragyps atratus	112	93.33	
53	Turkey Vulture	Cathartes aura	110	91.67	
54	Osprey	Pandion haliaetus	92	76.67	
55	White-tailed Kite	Elanus leucurus	62	51.67	
56	Swallow-tailed Kite	Elanoides forficatus	89	74.17	
57	Double-toothed Kite	Harpagus bidentatus	55	45.83	
58	Common Black Hawk	Buteogallus anthracinus	96	80.00	
59	Barred Hawk	Morphnarchus princeps	31	25.83	
60	Harris's Hawk	Parabuteo unicinctus	29	24.17	
61	Gray Hawk	Buteo plagiatus	46	38.33	
62	Swainson's Hawk	Buteo swainsoni	35	29.17	
63	Slaty-tailed Trogon	Trogon massena	87	72.50	
64	Gartered Trogon	Trogon caligatus	80	66.67	
65	Lesson's Motmot	Momotus lessonii	96	80.00	
66	Ringed Kingfisher	Megaceryle torquata	95	79.17	
67	Amazon Kingfisher	Chloroceryle amazona	92	76.67	
68	American Pygmy Kingfisher	Chloroceryle aenea	57	47.50	
69	White-necked Puffbird	Notharchus hyperrhynchus	50	41.67	
70	Pied Puffbird	Notharchus tectus	23	19.17	
71	White-fronted Nunbird	Monasa morphoeus	24	20.00	
72	Northern Emerald-Toucanet	Aulacorhynchus prasinus	92	76.67	
73	Collared Aracari	Pteroglossus torquatus	94	78.33	
74	Yellow-throated Toucan	Ramphastos ambiguus	104	86.67	
75	Keel-billed Toucan	Ramphastos sulfuratus	101	84.17	
76	Yellow-bellied Sapsucker	Sphyrapicus varius	9	7.50	
77	Black-cheeked Woodpecker	Melanerpes pucherani	97	80.83	
78	Pale-billed Woodpecker	Campephilus guatemalensis	85	70.83	
79	Lineated Woodpecker	Dryocopus lineatus	81	67.50	
80	Golden-olive Woodpecker	Colaptes rubiginosus	61	50.83	
81	Laughing Falcon	Herpetotheres cachinnans	75	62.50	
82	Orange-chinned Parakeet	Brotogeris jugularis	100	83.33	
83	Brown-hooded Parrot	Pyrilia haematotis	65	54.17	
84	White-crowned Parrot	Pionus senilis	83	69.17	
85	Red-lored Parrot	Amazona autumnalis	91	75.83	
86	Mealy Parrot	Amazona farinosa	83	69.17	
87	Olive-throated Parakeet	Eupsittula nana	63	52.50	
88	Scarlet Macaw	Ara macao	100	83.33	
89	Great Green Macaw	Ara ambiguus	76	63.33	
90	Crimson-fronted Parakeet	Psittacara finschi	89	74.17	
91	Black-crowned Antshrike	Thamnophilus atrinucha	50	41.67	
92	Streak-crowned Antvireo	Dysithamnus striaticeps	30	25.00	
93	White-flanked Antwren	Myrmotherula axillaris	8	6.67	
94	Chestnut-backed Antbird	Poliocrania exsul	76	63.33	
95	Bicolored Antbird	Gymnopithys bicolor	37	30.83	
96	Olivaceous Woodcreeper	Sittasomus griseicapillus	50	41.67	
97	Plain-brown Woodcreeper	Dendrocincla fuliginosa	45	37.50	
98	Wedge-billed Woodcreeper	Glyphorynchus spirurus	81	67.50	
99	Black-striped Woodcreeper	Xiphorhynchus lachrymosus	32	26.67	
100	Streak-headed Woodcreeper	Lepidocolaptes souleyetii	89	74.17	
101	Lineated Foliage-gleaner	Syndactyla subalaris	26	21.67	
102	Spotted Barbtail	Premnoplex brunnescens	56	46.67	
103	Red-faced Spinetail	Cranioleuca erythrops	53	44.17	
104	Pale-breasted Spinetail	Synallaxis albescens	11	9.17	
105	White-collared Manakin	Manacus candei	87	72.50	
106	Red-capped Manakin	Ceratopipra mentalis	62	51.67	
107	Black-crowned Tityra	Tityra inquisitor	64	53.33	
108	Masked Tityra	Tityra semifasciata	89	74.17	
109	Royal Flycatcher	Onychorhynchus coronatus	44	36.67	
110	Common Tody-Flycatcher	Todirostrum cinereum	96	80.00	
111	Yellow-bellied Elaenia	Elaenia flavogaster	79	65.83	
112	Mountain Elaenia	Elaenia frantzii	75	62.50	
113	Tropical Pewee	Contopus cinereus	68	56.67	
114	Yellowish Flycatcher	Empidonax flavescens	75	62.50	
115	Black Phoebe	Sayornis nigricans	77	64.17	
116	Long-tailed Tyrant	Colonia colonus	70	58.33	
117	Dusky-capped Flycatcher	Myiarchus tuberculifer	85	70.83	
118	Great Crested Flycatcher	Myiarchus crinitus	59	49.17	
119	Great Kiskadee	Pitangus sulphuratus	111	92.50	
120	Boat-billed Flycatcher	Megarynchus pitangua	92	76.67	
121	Social Flycatcher	Myiozetetes similis	105	87.50	
122	Gray-capped Flycatcher	Myiozetetes granadensis	86	71.67	
123	Golden-bellied Flycatcher	Myiodynastes hemichrysus	40	33.33	
124	Tropical Kingbird	Tyrannus melancholicus	109	90.83	
125	Eastern Kingbird	Tyrannus tyrannus	25	20.83	
126	Lesser Greenlet	Pachysylvia decurtata	85	70.83	
127	White-throated Magpie-Jay	Calocitta formosa	84	70.00	
128	Brown Jay	Psilorhinus morio	97	80.83	
129	Blue-and-white Swallow	Pygochelidon cyanoleuca	101	84.17	
130	Southern Rough-winged Swallow	Stelgidopteryx ruficollis	87	72.50	
131	Gray-breasted Martin	Progne chalybea	81	67.50	
132	Tree Swallow	Tachycineta bicolor	9	7.50	
133	Mangrove Swallow	Tachycineta albilinea	105	87.50	
134	Barn Swallow	Hirundo rustica	81	67.50	
135	Tropical Gnatcatcher	Polioptila plumbea	69	57.50	
136	House Wren	Troglodytes aedon	103	85.83	
137	Black-throated Wren	Pheugopedius atrogularis	40	33.33	
138	Rufous-and-white Wren	Thryophilus rufalbus	54	45.00	
139	Stripe-breasted Wren	Cantorchilus thoracicus	66	55.00	
140	White-breasted Wood-Wren	Henicorhina leucosticta	73	60.83	
141	Gray-breasted Wood-Wren	Henicorhina leucophrys	80	66.67	
142	Black-faced Solitaire	Myadestes melanops	77	64.17	
143	Slaty-backed Nightingale-Thrush	Catharus fuscater	65	54.17	
144	Swainson's Thrush	Catharus ustulatus	51	42.50	
145	Mountain Thrush	Turdus plebejus	82	68.33	
146	White-throated Thrush	Turdus assimilis	46	38.33	
147	Clay-colored Thrush	Turdus grayi	108	90.00	
148	House Sparrow	Passer domesticus	90	75.00	
149	Scrub Euphonia	Euphonia affinis	51	42.50	
150	Yellow-crowned Euphonia	Euphonia luteicapilla	81	67.50	
151	Elegant Euphonia	Euphonia elegantissima	34	28.33	
152	Olive-backed Euphonia	Euphonia gouldi	81	67.50	
153	White-vented Euphonia	Euphonia minuta	36	30.00	
154	Common Chlorospingus	Chlorospingus flavopectus	92	76.67	
155	Stripe-headed Sparrow	Peucaea ruficauda	64	53.33	
156	Black-striped Sparrow	Arremonops conirostris	87	72.50	
157	Chestnut-capped Brushfinch	Arremon brunneinucha	66	55.00	
158	Rufous-collared Sparrow	Zonotrichia capensis	103	85.83	
159	White-eared Ground-Sparrow	Melozone leucotis	60	50.00	
160	Yellow-billed Cacique	Amblycercus holosericeus	46	38.33	
161	Chestnut-headed Oropendola	Psarocolius wagleri	76	63.33	
162	Montezuma Oropendola	Psarocolius montezuma	105	87.50	
163	Scarlet-rumped Cacique	Cacicus uropygialis	64	53.33	
164	Black-cowled Oriole	Icterus prosthemelas	84	70.00	
165	Baltimore Oriole	Icterus galbula	83	69.17	
166	Red-winged Blackbird	Agelaius phoeniceus	85	70.83	
167	Bronzed Cowbird	Molothrus aeneus	74	61.67	
168	Great-tailed Grackle	Quiscalus mexicanus	109	90.83	
169	Northern Waterthrush	Parkesia noveboracensis	77	64.17	
170	Golden-winged Warbler	Vermivora chrysoptera	61	50.83	
171	Black-and-white Warbler	Mniotilta varia	69	57.50	
172	Tennessee Warbler	Leiothlypis peregrina	77	64.17	
173	Gray-crowned Yellowthroat	Geothlypis poliocephala	54	45.00	
174	Yellow Warbler	Setophaga petechia	88	73.33	
175	Chestnut-sided Warbler	Setophaga pensylvanica	84	70.00	
176	Palm Warbler	Setophaga palmarum	5	4.17	
177	Townsend's Warbler	Setophaga townsendi	15	12.50	
178	Rufous-capped Warbler	Basileuterus rufifrons	66	55.00	
179	Costa Rican Warbler	Basileuterus melanotis	62	51.67	
180	Wilson's Warbler	Cardellina pusilla	75	62.50	
181	Slate-throated Redstart	Myioborus miniatus	85	70.83	
182	Hepatic Tanager	Piranga flava	48	40.00	
183	Tawny-crested Tanager	Tachyphonus delatrii	33	27.50	
184	White-lined Tanager	Tachyphonus rufus	50	41.67	
185	Scarlet-rumped Tanager	Ramphocelus passerinii	106	88.33	
186	Blue-gray Tanager	Thraupis episcopus	107	89.17	
187	Palm Tanager	Thraupis palmarum	101	84.17	
188	Golden-hooded Tanager	Stilpnia larvata	97	80.83	
189	Spangle-cheeked Tanager	Tangara dowii	69	57.50	
190	Silver-throated Tanager	Tangara icterocephala	85	70.83	
191	Blue Dacnis	Dacnis cayana	72	60.00	
192	Shining Honeycreeper	Cyanerpes lucidus	67	55.83	
193	Red-legged Honeycreeper	Cyanerpes cyaneus	91	75.83	
194	Green Honeycreeper	Chlorophanes spiza	92	76.67	
195	Blue-black Grassquit	Volatinia jacarina	80	66.67	
196	Ruddy-breasted Seedeater	Sporophila minuta	19	15.83	
197	Thick-billed Seed-Finch	Sporophila funerea	67	55.83	
198	Variable Seedeater	Sporophila corvina	101	84.17	
199	Morelet's Seedeater	Sporophila morelleti	74	61.67	
200	Bananaquit	Coereba flaveola	105	87.50	
201	Yellow-faced Grassquit	Tiaris olivaceus	88	73.33	
202	Buff-throated Saltator	Saltator maximus	98	81.67