Filters and navigation

Year-round, All years

Illustrated Checklist

January February March April May June July August September October November December
Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0.1% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0%
Weekly frequency data

Last seen: 22 Jul 2012 by Anne Barker

January February March April May June July August September October November December
Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:1.1%
Weekly frequency data

Last seen: 26 Dec 2017 by Matt Gill

January February March April May June July August September October November December
Week1Frequency:82.6% Week2Frequency:92.5% Week3Frequency:89.7% Week4Frequency:92% Week1Frequency:91.1% Week2Frequency:94.4% Week3Frequency:93.9% Week4Frequency:93.6% Week1Frequency:94.9% Week2Frequency:96.6% Week3Frequency:97.1% Week4Frequency:97.8% Week1Frequency:100% Week2Frequency:96.2% Week3Frequency:95.1% Week4Frequency:98.2% Week1Frequency:97.4% Week2Frequency:97.3% Week3Frequency:95.5% Week4Frequency:88.9% Week1Frequency:93.8% Week2Frequency:77.1% Week3Frequency:86.1% Week4Frequency:87.8% Week1Frequency:89.7% Week2Frequency:78.3% Week3Frequency:81.8% Week4Frequency:83.7% Week1Frequency:88.5% Week2Frequency:94.7% Week3Frequency:97.1% Week4Frequency:86% Week1Frequency:92.9% Week2Frequency:88.1% Week3Frequency:90.5% Week4Frequency:95.8% Week1Frequency:93.5% Week2Frequency:93.9% Week3Frequency:94.3% Week4Frequency:97.6% Week1Frequency:90.8% Week2Frequency:90.8% Week3Frequency:83.7% Week4Frequency:82.6% Week1Frequency:78.8% Week2Frequency:83.8% Week3Frequency:73.7% Week4Frequency:72.7%
Weekly frequency data

Last seen: 27 Feb 2024 by Sergey Pavlov

January February March April May June July August September October November December
Week1Frequency:1.1% Week2Frequency:1.5% Week3Frequency:0% Week4Frequency:2.7% Week1Frequency:2.2% Week2Frequency:2.8% Week3Frequency:0% Week4Frequency:2.1% Week1Frequency:2.6% Week2Frequency:5.2% Week3Frequency:7.4% Week4Frequency:4.4% Week1Frequency:8.5% Week2Frequency:3.8% Week3Frequency:2.5% Week4Frequency:0.9% Week1Frequency:0% Week2Frequency:2% Week3Frequency:16.5% Week4Frequency:10.1% Week1Frequency:10.8% Week2Frequency:0.1% Week3Frequency:2.8% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0.1% Week2Frequency:1.7% Week3Frequency:0% Week4Frequency:0.8% Week1Frequency:1.1% Week2Frequency:0% Week3Frequency:0.9% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0.9% Week1Frequency:0.1% Week2Frequency:0.1% Week3Frequency:0% Week4Frequency:2.3%
Weekly frequency data

Last seen: 24 Jan 2024 by Martin R

January February March April May June July August September October November December
Week1Frequency:2.2% Week2Frequency:1.5% Week3Frequency:0.1% Week4Frequency:2.7% Week1Frequency:0.1% Week2Frequency:2.8% Week3Frequency:3% Week4Frequency:2.1% Week1Frequency:7.7% Week2Frequency:6.9% Week3Frequency:2.9% Week4Frequency:0.1% Week1Frequency:2.4% Week2Frequency:2.8% Week3Frequency:0% Week4Frequency:2.7% Week1Frequency:2.6% Week2Frequency:1.3% Week3Frequency:2.3% Week4Frequency:0.1% Week1Frequency:0% Week2Frequency:8.6% Week3Frequency:11.1% Week4Frequency:14.3% Week1Frequency:6.9% Week2Frequency:4.3% Week3Frequency:9.1% Week4Frequency:4.1% Week1Frequency:23.1% Week2Frequency:5.3% Week3Frequency:17.1% Week4Frequency:0% Week1Frequency:3.6% Week2Frequency:3.4% Week3Frequency:7.6% Week4Frequency:16% Week1Frequency:8.7% Week2Frequency:12.1% Week3Frequency:11.3% Week4Frequency:15.3% Week1Frequency:7.7% Week2Frequency:2.6% Week3Frequency:4.7% Week4Frequency:5.2% Week1Frequency:5.1% Week2Frequency:2.5% Week3Frequency:2% Week4Frequency:0%
Weekly frequency data

Last seen: 24 Feb 2024 by Joshua Reiss

January February March April May June July August September October November December
Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:1.1% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:2.9% Week4Frequency:1.7% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0% Week1Frequency:0% Week2Frequency:0% Week3Frequency:0% Week4Frequency:0%
Weekly frequency data

Last seen: 28 Mar 2023 by Audrey Ng

Exotic: Escapee

Hybrids

Mallard x American Black Duck (hybrid)

Last seen: 27 Feb 2024 by Sergey Pavlov

Additional taxa

Domestic goose sp. (Domestic type)

Last seen: 11 Feb 2022 by Trevor Krolak

Mallard/American Black Duck

Last seen: 14 Nov 2023 by Jordy H

old world quail sp.

Last seen: 23 May 2023 by Pavel Hanc

hummingbird sp.

Last seen: 26 Oct 2010 by Ryan Schain

Lesser/Greater Yellowlegs

Last seen: 26 Aug 1988 by Kenneth Hudson

shorebird sp.

Last seen: 24 Sep 2022 by William Buswell

cormorant sp.

Last seen: 17 Mar 2021 by Jeremy Cushman

Sharp-shinned/Cooper's Hawk

Last seen: 7 Mar 2023 by Adam Spellmire

Buteo sp.

Last seen: 7 May 2017 by Kenneth Hudson

Downy/Hairy Woodpecker

Last seen: 4 Jun 2020 by Leo Bix

falcon sp.

Last seen: 7 Nov 2021 by William Buswell

parakeet sp.

Last seen: 12 Sep 2016 by Oliver Burton

Alder/Willow Flycatcher (Traill's Flycatcher)

Last seen: 17 May 2022 by Pavel Hanc

Empidonax sp.

Last seen: 20 Sep 2020 by Laura Markley

new world flycatcher sp.

Last seen: 21 May 2022 by Frank Guenther

Philadelphia/Warbling Vireo

Last seen: 20 Sep 2020 by Jeremy Cushman

swallow sp.

Last seen: 6 May 2023 by Ben Cromartie

Gray-cheeked/Bicknell's Thrush

Last seen: 21 May 2017 by Chris Floyd

Catharus sp.

Last seen: 3 Nov 2021 by Laura Markley

House/Purple Finch

Last seen: 22 Jan 2022 by Yoav Golan

Spizella sp.

Last seen: 28 Oct 2017 by Christina Riehl

Spizella sp./American Tree Sparrow

Last seen: 18 Nov 2009 by Marshall Iliff

Lincoln's/Swamp Sparrow

Last seen: 19 Oct 2014 by Corey Husic

new world sparrow sp.

Last seen: 21 Jul 2022 by Ben Cromartie

Louisiana/Northern Waterthrush

Last seen: 27 Aug 1988 by Kenneth Hudson

Setophaga sp.

Last seen: 15 Sep 2023 by Marshall Iliff

new world warbler sp.

Last seen: 22 Oct 2023 by Avery Scott

tanager sp. (Piranga sp.)

Last seen: 15 May 2011 by Ryan Schain

passerine sp.

Last seen: 5 May 2023 by Fred Bouchard

bird sp.

Last seen: 5 Sep 2021 by Raphaël Nussbaumer