birdsadvice.com Rank 1M. Estimated value 2,076$observation.org Rank 510.9K. Estimated value 4,236$pigeonpedia.com Rank 1.7M. Estimated value 1,224$ornithomedia.com Rank 2.8M. Estimated value 768$parrotwebsite.com Rank 537.7K. Estimated value 4,020$birdwatchireland.ie Rank 5.5M. Estimated value 384$greennature.com Rank 896.4K. Estimated value 2,400$birdguides.com Rank 441.2K. Estimated value 4,908$wbsj.org Rank 798.2K. Estimated value 2,700$celebrateurbanbirds.org Rank 1.3M. Estimated value 1,680$