Eurasian Tree Sparrow (Passer montanus malaccensis)
Tampines, 27th July 2017
- NParks Flora & Fauna Web
- The Biodiversity of Singapore
- Singapore Birds Project
- The Birds of NUS
- The Tide Chaser: Passerines or Perching Birds (Phylum Chordata: Order Passeriformes) of Singapore
- Oriental Bird Images
- Internet Bird Collection
- BirdForum Opus
- Planet of Birds
- Royal Society for the Protection of Birds
- British Trust for Ornithology Birdfacts
- British Trust for Ornithology Garden Birds
- BirdWatch Ireland
- National Audubon Society Birds
- All About Birds
- ARKive
- IUCN Red List
- Seasonal breeding in an equatorial population of the Tree Sparrow Passer montanus