Bennet Porter: Massachusetts Year List 2022 MARC, All records: Top Blockers Record(s) 1 to 164 of 164 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Brant	Branta bernicla	1	100.00	
2	Canada Goose	Branta canadensis	1	100.00	
3	Mute Swan	Cygnus olor	1	100.00	
4	Wood Duck	Aix sponsa	1	100.00	
5	Gadwall	Mareca strepera	1	100.00	
6	American Wigeon	Mareca americana	1	100.00	
7	Mallard	Anas platyrhynchos	1	100.00	
8	American Black Duck	Anas rubripes	1	100.00	
9	Northern Pintail	Anas acuta	1	100.00	
10	Green-winged Teal	Anas crecca	1	100.00	
11	Ring-necked Duck	Aythya collaris	1	100.00	
12	Greater Scaup	Aythya marila	1	100.00	
13	Lesser Scaup	Aythya affinis	1	100.00	
14	Common Eider	Somateria mollissima	1	100.00	
15	Surf Scoter	Melanitta perspicillata	1	100.00	
16	White-winged Scoter	Melanitta deglandi	1	100.00	
17	Black Scoter	Melanitta americana	1	100.00	
18	Long-tailed Duck	Clangula hyemalis	1	100.00	
19	Bufflehead	Bucephala albeola	1	100.00	
20	Common Goldeneye	Bucephala clangula	1	100.00	
21	Hooded Merganser	Lophodytes cucullatus	1	100.00	
22	Red-breasted Merganser	Mergus serrator	1	100.00	
23	Ruddy Duck	Oxyura jamaicensis	1	100.00	
24	Wild Turkey	Meleagris gallopavo	1	100.00	
25	Pied-billed Grebe	Podilymbus podiceps	1	100.00	
26	Horned Grebe	Podiceps auritus	1	100.00	
27	Western Grebe	Aechmophorus occidentalis	1	100.00	
28	Rock Pigeon	Columba livia	1	100.00	
29	Mourning Dove	Zenaida macroura	1	100.00	
30	Chimney Swift	Chaetura pelagica	1	100.00	
31	Ruby-throated Hummingbird	Archilochus colubris	1	100.00	
32	American Coot	Fulica americana	1	100.00	
33	American Oystercatcher	Haematopus palliatus	1	100.00	
34	Black-bellied Plover	Pluvialis squatarola	1	100.00	
35	Killdeer	Charadrius vociferus	1	100.00	
36	Semipalmated Plover	Charadrius semipalmatus	1	100.00	
37	Piping Plover	Charadrius melodus	1	100.00	
38	Ruddy Turnstone	Arenaria interpres	1	100.00	
39	Sanderling	Calidris alba	1	100.00	
40	Dunlin	Calidris alpina	1	100.00	
41	Least Sandpiper	Calidris minutilla	1	100.00	
42	Semipalmated Sandpiper	Calidris pusilla	1	100.00	
43	Willet	Tringa semipalmata	1	100.00	
44	Greater Yellowlegs	Tringa melanoleuca	1	100.00	
45	Thick-billed Murre	Uria lomvia	1	100.00	
46	Black Guillemot	Cepphus grylle	1	100.00	
47	Bonaparte's Gull	Chroicocephalus philadelphia	1	100.00	
48	Laughing Gull	Leucophaeus atricilla	1	100.00	
49	Ring-billed Gull	Larus delawarensis	1	100.00	
50	Herring Gull	Larus argentatus	1	100.00	
51	Iceland Gull	Larus glaucoides	1	100.00	
52	Lesser Black-backed Gull	Larus fuscus	1	100.00	
53	Great Black-backed Gull	Larus marinus	1	100.00	
54	Least Tern	Sternula antillarum	1	100.00	
55	Black Tern	Chlidonias niger	1	100.00	
56	Roseate Tern	Sterna dougallii	1	100.00	
57	Common Tern	Sterna hirundo	1	100.00	
58	Forster's Tern	Sterna forsteri	1	100.00	
59	Common Loon	Gavia immer	1	100.00	
60	Northern Gannet	Morus bassanus	1	100.00	
61	Great Cormorant	Phalacrocorax carbo	1	100.00	
62	Double-crested Cormorant	Nannopterum auritum	1	100.00	
63	Great Blue Heron	Ardea herodias	1	100.00	
64	Great Egret	Ardea alba	1	100.00	
65	Snowy Egret	Egretta thula	1	100.00	
66	Little Blue Heron	Egretta caerulea	1	100.00	
67	Green Heron	Butorides virescens	1	100.00	
68	Black-crowned Night-Heron	Nycticorax nycticorax	1	100.00	
69	Black Vulture	Coragyps atratus	1	100.00	
70	Turkey Vulture	Cathartes aura	1	100.00	
71	Osprey	Pandion haliaetus	1	100.00	
72	Northern Harrier	Circus hudsonius	1	100.00	
73	Cooper's Hawk	Accipiter cooperii	1	100.00	
74	Bald Eagle	Haliaeetus leucocephalus	1	100.00	
75	Red-shouldered Hawk	Buteo lineatus	1	100.00	
76	Broad-winged Hawk	Buteo platypterus	1	100.00	
77	Red-tailed Hawk	Buteo jamaicensis	1	100.00	
78	Rough-legged Hawk	Buteo lagopus	1	100.00	
79	Eastern Screech-Owl	Megascops asio	1	100.00	
80	Great Horned Owl	Bubo virginianus	1	100.00	
81	Belted Kingfisher	Megaceryle alcyon	1	100.00	
82	Red-bellied Woodpecker	Melanerpes carolinus	1	100.00	
83	Yellow-bellied Sapsucker	Sphyrapicus varius	1	100.00	
84	Downy Woodpecker	Dryobates pubescens	1	100.00	
85	Hairy Woodpecker	Dryobates villosus	1	100.00	
86	Northern Flicker	Colaptes auratus	1	100.00	
87	American Kestrel	Falco sparverius	1	100.00	
88	Peregrine Falcon	Falco peregrinus	1	100.00	
89	Great Crested Flycatcher	Myiarchus crinitus	1	100.00	
90	Eastern Kingbird	Tyrannus tyrannus	1	100.00	
91	Eastern Wood-Pewee	Contopus virens	1	100.00	
92	Willow Flycatcher	Empidonax traillii	1	100.00	
93	Hammond's Flycatcher	Empidonax hammondii	1	100.00	
94	Eastern Phoebe	Sayornis phoebe	1	100.00	
95	Vermilion Flycatcher	Pyrocephalus rubinus	1	100.00	
96	Warbling Vireo	Vireo gilvus	1	100.00	
97	Red-eyed Vireo	Vireo olivaceus	1	100.00	
98	Blue Jay	Cyanocitta cristata	1	100.00	
99	American Crow	Corvus brachyrhynchos	1	100.00	
100	Fish Crow	Corvus ossifragus	1	100.00	
101	Common Raven	Corvus corax	1	100.00	
102	Black-capped Chickadee	Poecile atricapillus	1	100.00	
103	Tufted Titmouse	Baeolophus bicolor	1	100.00	
104	Horned Lark	Eremophila alpestris	1	100.00	
105	Tree Swallow	Tachycineta bicolor	1	100.00	
106	Northern Rough-winged Swallow	Stelgidopteryx serripennis	1	100.00	
107	Purple Martin	Progne subis	1	100.00	
108	Barn Swallow	Hirundo rustica	1	100.00	
109	Ruby-crowned Kinglet	Corthylio calendula	1	100.00	
110	Golden-crowned Kinglet	Regulus satrapa	1	100.00	
111	Cedar Waxwing	Bombycilla cedrorum	1	100.00	
112	Red-breasted Nuthatch	Sitta canadensis	1	100.00	
113	White-breasted Nuthatch	Sitta carolinensis	1	100.00	
114	Brown Creeper	Certhia americana	1	100.00	
115	Carolina Wren	Thryothorus ludovicianus	1	100.00	
116	House Wren	Troglodytes aedon	1	100.00	
117	Gray Catbird	Dumetella carolinensis	1	100.00	
118	Northern Mockingbird	Mimus polyglottos	1	100.00	
119	European Starling	Sturnus vulgaris	1	100.00	
120	Eastern Bluebird	Sialia sialis	1	100.00	
121	Veery	Catharus fuscescens	1	100.00	
122	Hermit Thrush	Catharus guttatus	1	100.00	
123	Wood Thrush	Hylocichla mustelina	1	100.00	
124	American Robin	Turdus migratorius	1	100.00	
125	House Sparrow	Passer domesticus	1	100.00	
126	House Finch	Haemorhous mexicanus	1	100.00	
127	American Goldfinch	Spinus tristis	1	100.00	
128	Grasshopper Sparrow	Ammodramus savannarum	1	100.00	
129	Chipping Sparrow	Spizella passerina	1	100.00	
130	Field Sparrow	Spizella pusilla	1	100.00	
131	American Tree Sparrow	Spizelloides arborea	1	100.00	
132	Dark-eyed Junco	Junco hyemalis	1	100.00	
133	White-throated Sparrow	Zonotrichia albicollis	1	100.00	
134	Vesper Sparrow	Pooecetes gramineus	1	100.00	
135	Saltmarsh Sparrow	Ammospiza caudacuta	1	100.00	
136	Savannah Sparrow	Passerculus sandwichensis	1	100.00	
137	Song Sparrow	Melospiza melodia	1	100.00	
138	Swamp Sparrow	Melospiza georgiana	1	100.00	
139	Eastern Towhee	Pipilo erythrophthalmus	1	100.00	
140	Eastern Meadowlark	Sturnella magna	1	100.00	
141	Orchard Oriole	Icterus spurius	1	100.00	
142	Baltimore Oriole	Icterus galbula	1	100.00	
143	Red-winged Blackbird	Agelaius phoeniceus	1	100.00	
144	Brown-headed Cowbird	Molothrus ater	1	100.00	
145	Common Grackle	Quiscalus quiscula	1	100.00	
146	Ovenbird	Seiurus aurocapilla	1	100.00	
147	Worm-eating Warbler	Helmitheros vermivorum	1	100.00	
148	Black-and-white Warbler	Mniotilta varia	1	100.00	
149	Nashville Warbler	Leiothlypis ruficapilla	1	100.00	
150	Common Yellowthroat	Geothlypis trichas	1	100.00	
151	American Redstart	Setophaga ruticilla	1	100.00	
152	Northern Parula	Setophaga americana	1	100.00	
153	Bay-breasted Warbler	Setophaga castanea	1	100.00	
154	Yellow Warbler	Setophaga petechia	1	100.00	
155	Chestnut-sided Warbler	Setophaga pensylvanica	1	100.00	
156	Blackpoll Warbler	Setophaga striata	1	100.00	
157	Palm Warbler	Setophaga palmarum	1	100.00	
158	Pine Warbler	Setophaga pinus	1	100.00	
159	Yellow-rumped Warbler	Setophaga coronata	1	100.00	
160	Prairie Warbler	Setophaga discolor	1	100.00	
161	Black-throated Green Warbler	Setophaga virens	1	100.00	
162	Scarlet Tanager	Piranga olivacea	1	100.00	
163	Northern Cardinal	Cardinalis cardinalis	1	100.00	
164	Rose-breasted Grosbeak	Pheucticus ludovicianus	1	100.00