Greetings Fellow Birders, Please find the Ontario Rare Bird Report for the week of May 16, 2025 below. This weekly report provides information about bird sightings that are significant due to the species, the location and/or time of year of the sighting. Within these weekly reports, as much detail will be provided as possible regarding observations, including providing credit to the initial observer(s) and location details. Please use eBird to provide specific details as sightings are recorded. Note that species in all-caps are on the ORBC review list. Amendments/corrections may be sent to dbirkenbergs.birdreports@gmail.com. I thank each of you for your patience for any inadvertent oversights. As always, respectful feedback is welcome! Chuck-will's-widow 19-May-25; Toronto - Toronto Islands - Amanda Guercio Hudsonian Godwit 21-May-25; Stormont, Dundas & Glengarry - Bainsville; Dawn Scranton/Robert Scranton Marbled Godwit 16-May-25; Essex - Point Pelee NP (Tip); Chris Charlesworth/Melissa Hafting Marbled Godwit 19-May-25; Timiskaming - McGarry; Louvil Archambault Ruff 17-May-25; Lambton - Thedford Sewage Lagoons; james holdsworth Black-headed Gull 18-May-25; Lambton - Kettle Point; Brandon Holden Black-headed Gull 21-May-25; Grey - Hibou CA; william gray Laughing Gull 17-May-25; Durham - McLaughlin Bay Nature Reserve; Peter Darcy Laughing Gull 18-May-25; Algoma - Goulais River; Leo Weiskittel Laughing Gull 22-May-25; Frontenac - Wolfe Island; Mark D. Read Franklin's Gull 18-May-25; Chatham-Kent - McGreachy Pond (Erieau); Steve Charbonneau Franklin's Gull 22-May-25; Northumberland - Presqu'ile PP; Brian Morin CALIFORNIA GULL 16-May-25; Toronto - Tommy Thompson Park; Gavin Platt Arctic Tern 22-May-25; Renfrew - Pembroke Marina; Logan Baldwin Western Grebe 16-May-25; Toronto - Colonel Samuel Smith Park; Lowell Goudge *continuing bird; originally sighted by Joaco V. on 9-May-25 NEOTROPIC CORMORANT 16-May-25; Essex - Hillman Marsh CA; Paul Pratt *likely the same bird originally sighted by Kenneth G.D. Burrell on 4-May-25 NEOTROPIC CORMORANT 21-May-25; Essex - Pelee Island; Joshua Vandermeulen Glossy Ibis 19-May-25; Essex - Hillman Marsh CA/Amherstburg; Rick Eckley Mississippi Kite 17-May-25; Essex - Point Pelee NP; Elizabeth Hunter *continuing bird; originally sighted by David Verkley/Patricia Verkley on 13-May-25 Western Kingbird 17-May-25; Algoma - Bellevue Park (Sault Ste. Marie); Christopher Zayachkowski Western Kingbird 21-May-25; Renfrew - Killaloe; Jude Szabo SCISSOR-TAILED FLYCATCHER 18-May-25; Thunder Bay - Rossport; Mark Campbell/Pegg Campbell EURASIAN TREE SPARROW 16-May-25; Algoma - Camp Sand Bay (Goulais River); Ken McIlwrick Lark Sparrow 19-May-25; Norfolk - Long Point (Tip); Mathis Pfreundt LeConte's Sparrow 20-May-25; Thunder Bay - Raggard Road; Ethan Gosnell/Jeff Skevington/Leo Weiskittel Yellow-headed Blackbird 20-May-25; Essex - Pelee Island; Carolyn Bennett Worm-eating Warbler 16-May-25; Essex - Point Pelee NP (Tilden's Woods); Marcie Jacklin Connecticut Warbler 17-May-25; Peel - Wood Creek Fields (Mississauga) - Peter L. Connecticut Warbler 19-May-25; Durham - Brock Sideroad 17 - Tyler L. Hoar Kentucky Warbler 16-May-25; Essex - Kopegaron Woods CA; Andrew Keaveney Kirtland's Warbler 18-May-25; Bruce - Dyer's Bay Road; Kenneth G.D. Burrell Yellow-throated Warbler 18-May-25; Essex - Seacliff Park/Point Pelee NP; Karen Padbury *like the same bird originally sighted by Sarah Lamond/William Lamond on 28-Apr-25 Yellow-throated Warbler 18-May-25; Bruce - Cape Hurd/Zorra Road; Anne-Marie Taylor/Bob Taylor Dickcissel 18-May-25; Toronto - Tommy Thompson Park; Sean HH Dickcissel 19-May-25; Chatham-Kent - Zion Road; Kiah R. Jasper/Alessandra Kite Good Birding, Dan -- Report compiled by Dan Birkenbergs from a variety of sources, primarily eBird; most other sources are listed here: http://ofo.ca/site/content/ontario-hotlines-and-news Ontbirds and Birdnews are moderated email Listservs provided by the Ontario Field Ornithologists (OFO) as a service to all birders in Ontario. Birdnews is reserved for announcements, location summaries, first of year reports, etc. To post a message on Birdnews, send an email to: birdnews@ontbirds.ca. If you have any questions or concerns, contact the Birdnews Moderators by email at birdnews@ofo.ca. Please review posting rules and guidelines at http://ofo.ca/site/content/listserv-guidelines To find out more about OFO, please visit our website at ofo.ca or Facebook page at https://www.facebook.com/OntarioFieldOrnithologists.