House Martin | BTO - British Trust for Ornithology
NestWatch | Purple Martin - NestWatch
Purple Martin Imposters
Purple Martin Life History, All About Birds, Cornell Lab of Ornithology
Purple Martins Need YOU!
Whats This? Bee-Wasp-Possible Bird. - Cycling UK Forum
ChirpyNest @ Peaceful Valley Purple Martins
House Martin On Nest Photos and Images | Shutterstock
Purple Martin 'Landlords' Manage a Different Kind of Tenant | Smithsonian's National Zoo and Conservation Biology Institute
Weekend Birding: Purple Martins and a Wren Update | Under My Apple Tree
Purple martins make great neighbors
Purple Martins: The Bird That Relies on Human-Built Nests - Cool Green Science
Purple Martin | National Geographic | Purple martin, Martin bird, Wild bird feeders
Fairy martin - Wikipedia
Purple Martins: The Bird That Relies on Human-Built Nests - Cool Green Science
Fairy Martin - The Australian Museum
How to do a nest change for your Purple Martins - Michigan Audubon
Did you know a house martin's nest is made with 1,000 beak-sized pellets of mud? | Scottish Wildlife Trust
House martin - Norfolk Wildlife Trust
Purple Martin Nesting Enhancement | Midpeninsula Regional Open Space District
The "Purple Passion" of North America's Purple Martin Landlords | All About Birds All About Birds
House Martin on Arran - Arran Birding
Delichon - Wikipedia
House Martin breeding
Purple Martin Nesting
