The crest of a proud-looking Yellow Vented Bulbul (Pycnonotus goiavier jambu) is raised as it sits atop a small bush, just outside of Phnom Penh, Cambodia.
A scruffy-looking male Helmeted Guineafowl (Numida meleagris) hiding among dense undergrowth in the British countryside, a suitable habitat for this long-standing alien species.
