Abstract: Heilongjiang (northeastern extreme of China) is located between the temperate and the boreal zone, harboring a high diversity of birds. The Avifauna of Heilongjiang was published in 1992 and included 19 Orders, 57 Families and 343 bird species, which represented 29% of 1186 bird species nationwide. However, after more than two decades, there is a need to update the list of birds of Heilongjiang because during this time period more and more new records have been added, and studies on bird taxonomy have developed rapidly. We checked references of new records and compared them with the second edition of A Checklist on the Classification and Distribution of the Birds of China. We added 2 Orders, 8 Families and 51 species, deleted 1 Order, 1 Family and 11 species. We also revised 2 families, 14 genera, Latin names of 14 species and 16 subspecies, and 38 Chinese names. Additionally, 21 subspecies were updated to species. After these modifications, there are 20 Orders, 64 Families and 384 species in Heilongjiang, representing 28% of 1371 bird species nationwide. We found 21 species not previously recorded in Heilongjiang according to A Checklist on the Classification and Distribution of the Birds of China. This revision is an important contribution to updating both Heilongjiang and Chinese avifauna.

Key words: high yield, N, P₂O₅ and K₂O concentrations, eggplant, high quality., soilless culture