4K HD Wallpaper: Jay Bird
Tomasz Proszek took this wonderful photography with the beautiful bird and from his courtesy this image can be downloaded free under CC0 license. If you like the photo, here's optimized for fit in desktop backgrounds, homescreen phones, blogs, webdesign projects, apps, social media, content marketing...
Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x2048 (compatible with almost all tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many smartphones)
Camera: Canon EOS Digital Rebel XTI | Taken: November 30, 2010
Settings: Aperture: f/5.6 | Exposure time: 1/2000 | Focal Length: 400.0 mm | ISO / Flash: 400 / NO