When I first observed these birds in USA

These are only birds I've seen or heard myself, sorted from newest to oldest observations. A total of 188 species is included, 188 of them have been observed.

Arctic loon 07 December 2024 in Bodenseeregion und Ostschweiz - never observed in United States of America
Dark-eyed junco 06 October 2024
Swainson's thrush 24 September 2024
Yellow-bellied sapsucker 24 September 2024
Black turnstone 18 September 2024
Black tern 24 August 2024 in Klingnauer Stausee (man-made lake) - never observed in United States of America
Monk parakeet 12 July 2024 in Spain - never observed in United States of America
Black drongo 25 February 2024 in Thailand - never observed in United States of America
Siberian rubythroat 18 February 2024 in Thailand - never observed in United States of America
Scaly-breasted munia 18 February 2024 in Thailand - never observed in United States of America
Indian tree pipit 29 January 2024 in Thailand - never observed in United States of America
Bank swallow 26 January 2024 in Thailand - never observed in United States of America
Spotted dove 22 January 2024 in Thailand - never observed in United States of America
Red-whiskered bulbul 21 January 2024 in Thailand - never observed in United States of America
Common myna 19 January 2024 in Asia - never observed in United States of America
Zebra dove 19 January 2024 in Thailand - never observed in United States of America
Black-capped chickadee 13 October 2023
Hermit thrush 13 October 2023
Bald eagle 13 October 2023
Hairy woodpecker (alternate) 12 October 2023
Glaucous gull 12 October 2023
Great northern loon 06 October 2023
Northern barred owl 04 October 2023
Palm warbler 03 October 2023
Mottled duck 25 September 2023
Fish crow 24 September 2023
Boat-tailed grackle 24 September 2023
Common gallinule 23 September 2023
White ibis 23 September 2023
Herring gull 19 August 2023 in Scotland - first observed in United States of America 06 October 2023
Common pheasant 14 August 2023 in Islay - never observed in United States of America
White-fronted goose 11 August 2023 in Scotland - never observed in United States of America
Great black-backed gull 11 August 2023 in Islay - never observed in United States of America
Yellow warbler 21 April 2023 in Yucatan - never observed in United States of America
Osprey 21 April 2023 in Yucatan - first observed in United States of America 27 September 2023
Semipalmated sandpiper 20 April 2023 in Yucatan - first observed in United States of America 18 September 2024
Orange-crowned warbler 20 April 2023 in Yucatan - never observed in United States of America
Ferruginous pygmy-owl 16 April 2023 in Yucatan - never observed in United States of America
Green heron 16 April 2023 in Yucatan - never observed in United States of America
Least flycatcher 16 April 2023 in Yucatan - never observed in United States of America
Smooth-billed ani 16 April 2023 in Yucatan - never observed in United States of America
Willet 15 April 2023 in Yucatan - first observed in United States of America 27 September 2023
Reddish egret 15 April 2023 in Yucatan - never observed in United States of America
Royal tern 15 April 2023 in Yucatan - never observed in United States of America
Red knot 15 April 2023 in Yucatan - never observed in United States of America
Shortbilled dowitcher 15 April 2023 in Yucatan - never observed in United States of America
American flamingo 15 April 2023 in Yucatan - never observed in United States of America
Tricolored heron 15 April 2023 in Yucatan - first observed in United States of America 23 September 2023
American anhinga 15 April 2023 in Yucatan - first observed in United States of America 23 September 2023
Roseate spoonbill 15 April 2023 in Yucatan - never observed in United States of America
Western kingbird 15 April 2023 in Yucatan - never observed in United States of America
Common black hawk 15 April 2023 in Yucatan - never observed in United States of America
Snowy egret 15 April 2023 in Yucatan - first observed in United States of America 27 September 2023
Black vulture 14 April 2023 in Yucatan - never observed in United States of America
Bronzed cowbird 13 April 2023 in Yucatan - never observed in United States of America
Cave swallow 11 April 2023 in Yucatan - never observed in United States of America
White-winged dove 07 April 2023 in Yucatan - never observed in United States of America
Hooded oriole 07 April 2023 in Yucatan - never observed in United States of America
Brown-crested flycatcher 07 April 2023 in Yucatan - never observed in United States of America
Double-crested cormorant (alternate) 06 April 2023 in Yucatan - never observed in United States of America
Least sandpiper 06 April 2023 in Yucatan - never observed in United States of America
Red-billed pigeon 04 April 2023 in Yucatan - never observed in United States of America
Common yellowthroat 03 April 2023 in Yucatan - never observed in United States of America
Purple martin 01 April 2023 in Yucatan - never observed in United States of America
Sulphur-bellied flycatcher 01 April 2023 in Yucatan - never observed in United States of America
Pied-billed grebe 31 March 2023 in Yucatan - never observed in United States of America
Rose-throated becard 31 March 2023 in Yucatan - never observed in United States of America
Altamira oriole 31 March 2023 in Yucatan - never observed in United States of America
Yellow-green vireo 31 March 2023 in Yucatan - never observed in United States of America
Couch's kingbird 30 March 2023 in Yucatan - never observed in United States of America
Plain chachalaca 29 March 2023 in Yucatan - never observed in United States of America
Prothonotary warbler 27 March 2023 in Yucatan - never observed in United States of America
Black-and-white warbler 27 March 2023 in Yucatan - never observed in United States of America
Sanderling 27 March 2023 in Yucatan - first observed in United States of America 27 September 2023
Laughing gull 26 March 2023 in Yucatan - never observed in United States of America
Magnificent frigatebird 26 March 2023 in Yucatan - never observed in United States of America
Velvet scoter 09 February 2023 in Switzerland - never observed in United States of America
Brambling 01 February 2023 in Luppmen - never observed in United States of America
Little gull 03 December 2022 in Rapperswil - first observed in United States of America 03 December 2022
Glossy ibis 04 September 2022 in Neeracherried - never observed in United States of America
Common sandpiper 04 September 2022 in Neeracherried - never observed in United States of America
Common ringed plover 04 September 2022 in Neeracherried - never observed in United States of America
Eurasian skylark 25 June 2022 in Fanel/Chablais de Cudrefin und La Sauge - never observed in United States of America
Golden eagle 21 May 2022 in Leuk and surroundings - never observed in United States of America
Scarlet tanager 07 May 2022
Pileated woodpecker 05 May 2022
American redstart 02 May 2022
Canada goose 01 May 2022
Northern rough-winged swallow 01 May 2022
White-eyed vireo 01 May 2022
Northern parula 01 May 2022
Red-tailed hawk 29 April 2022
Northern flicker 29 April 2022
Blue-gray gnatcatcher 29 April 2022
Ruby-crowned kinglet (alternate) 29 April 2022
Brown thrasher 29 April 2022
White-throated sparrow 28 April 2022
Eastern phoebe 28 April 2022
Common greenshank 12 April 2022 in Mallorca - first observed in United States of America 14 September 2024
Kentish plover 08 April 2022 in Mallorca - never observed in United States of America
Whimbrel 19 March 2022 in San Christiano - never observed in United States of America
Ruddy turnstone 19 March 2022 in Tenerife - never observed in United States of America
Atlantic canary 08 March 2022 in La Palma - never observed in United States of America
Rock dove 08 March 2022 in La Gomera - first observed in United States of America 23 September 2023
Northern pintail 05 February 2022 in Klingnauer Stausee (man-made lake) - never observed in United States of America
Lesser black-backed gull 16 January 2022
Common snipe 24 October 2021 in Neeracherried - never observed in United States of America
Wood sandpiper 19 August 2021 in Uznach - never observed in United States of America
Northern wheatear 29 July 2021 in Lej muragl - never observed in United States of America
Eastern wood-pewee 19 June 2021
Baltimore oriole 18 June 2021
Red-bellied woodpecker 18 June 2021
Turkey 18 June 2021
House wren 17 June 2021
Northern mockingbird 17 June 2021
Common grackle 17 June 2021
American goldfinch 17 June 2021
Great blue heron 17 June 2021
Mourning dove 15 June 2021
Red-winged blackbird 14 June 2021
Eastern bluebird 14 June 2021
Brown-headed cowbird 14 June 2021
Eastern kingbird 14 June 2021
Blue jay 14 June 2021
Tree swallow 14 June 2021
Downy woodpecker 14 June 2021
Red-eyed vireo 13 June 2021
Song sparrow 13 June 2021
Carolina wren 13 June 2021
Wood thrush 12 June 2021
Tufted titmouse 12 June 2021
American crow 12 June 2021
Chipping sparrow 12 June 2021
House finch 11 June 2021
Grey catbird 11 June 2021
Carolina chickadee 11 June 2021
Northern cardinal 10 June 2021
Goosander 10 May 2021 in Locarno - never observed in United States of America
Common cuckoo 04 May 2021 in Flachsee am Reuss - first observed in United States of America 20 May 2021
Red-breasted merganser 06 April 2021 in Locarno - never observed in United States of America
Great crested flycatcher 18 March 2021 in Fehraltorf - first observed in United States of America 29 April 2022
Common raven 10 March 2021 in Wetzikon - never observed in United States of America
Black-necked grebe 07 March 2021 in Rapperswil - never observed in United States of America
Common gull 07 March 2021 in Rapperswil - never observed in United States of America
Eurasian wigeon 24 February 2021 in Neeracherried - never observed in United States of America
Great egret 24 February 2021 in Neeracherried - never observed in United States of America
Mute swan 12 February 2021 in Rapperswil - never observed in United States of America
Common moorhen 12 February 2021 in Jona - first observed in United States of America 30 October 2021
Common pochard 08 February 2021 in Um Naturzentrum Silberweide am Greifensee - never observed in United States of America
Gadwall 08 February 2021 in Um Naturzentrum Silberweide am Greifensee - first observed in United States of America 07 December 2024
Northern shoveler 08 February 2021 in Um Naturzentrum Silberweide am Greifensee - never observed in United States of America
Great cormorant 26 January 2021 in Pfäffikersee - first observed in United States of America 13 October 2023
Eurasian teal 26 January 2021 in Pfäffikersee - never observed in United States of America
Common goldeneye 26 January 2021 in Pfäffikersee - never observed in United States of America
Northern goshawk 17 January 2021 in Fehraltorf - never observed in United States of America
Red crossbill 13 June 2020 in Sils - first observed in United States of America 03 October 2023
Eurasian collared dove 21 May 2020 in Luppmen - first observed in United States of America 16 July 2023
Black-headed gull 20 May 2020 in Fehraltorf - never observed in United States of America
Mallard 20 May 2020 in Fehraltorf - never observed in United States of America
Common tern 27 April 2020 in Luppmen - never observed in United States of America
Common buzzard 17 April 2020 in Alpweg - first observed in United States of America 27 April 2024
American robin 17 April 2020 in Luppmen - first observed in United States of America 11 June 2021
Barn swallow 16 April 2020 in Fehraltorf - first observed in United States of America 04 May 2021
Common starling 11 April 2020 in Luppmen - first observed in United States of America 26 May 2023
Eurasian tree sparrow 10 April 2020 in Luppmen - never observed in United States of America
Yellow-crowned night heron 13 March 2020 in Costa Rica - never observed in United States of America
Brown pelican 08 March 2020 in Panama - first observed in United States of America 24 September 2023
Eastern meadowlark 02 March 2020 in Panama - first observed in United States of America 26 April 2022
Black-billed whistling duck 19 February 2020 in Panama - never observed in United States of America
House sparrow 14 May 2019 in Luppmen - first observed in United States of America 20 May 2021
Ruddy ground dove 11 March 2018 in Costa Rica - never observed in United States of America
Sandwich tern 11 March 2018 in Costa Rica - first observed in United States of America 27 September 2023
Clay-colored robin 01 March 2018 in Costa Rica - never observed in United States of America
Western wood-pewee 01 March 2018 in Costa Rica - never observed in United States of America
Turkey vulture 28 February 2018 in Costa Rica - first observed in United States of America 15 June 2021
Cattle egret 27 February 2018 in Costa Rica - never observed in United States of America
Summer tanager 27 February 2018 in Costa Rica - never observed in United States of America
Great kiskadee 26 February 2018 in Costa Rica - never observed in United States of America
Tropical kingbird 16 February 2018 in Costa Rica - never observed in United States of America
Black-bellied plover 25 September 2016 in Botswana - never observed in United States of America
Egyptian goose 24 September 2016 in Botswana - never observed in United States of America
Atlantic puffin 10 June 2015 in Iceland - never observed in United States of America
Parasitic jaeger 10 June 2015 in Iceland - never observed in United States of America
Common eider 09 June 2015 in Iceland - first observed in United States of America 13 October 2023
Horned grebe 05 June 2015 in Iceland - never observed in United States of America
Barrow's goldeneye 05 June 2015 in Iceland - never observed in United States of America
White wagtail 05 June 2015 in Iceland - never observed in United States of America
Common whooper 03 June 2015 in Iceland - never observed in United States of America