Bushtit also is known as Psaltriparus minimus are small sized passerine birds found throughout North America. They weigh in between 5 to 6 g and grow up to 4.3 inches in size. Its diet largely comprises of insects and seeds, having a life expectancy of 9.1 years. They have an overall gray-brown coloration with a large head, a short neck, a long tail, and a short stubby bill.