Study On The Migration Bird Of Forest In The West And The Intermediate Section Of Heilongjiang Province

Utilizing the data of Gaogeng station (49?06 ' N, 125?15 ' E) in the west of Heilongjiang province and Maoer shan(45?25'N, 127?34'E) station in the intermediate section of Heilongjiang province, we researched the characteristic of migration bird of forest, fe work in spring (the end of February till the end of May) and autumn (the end of August till the end of November), fe work about 6 month every year, fe banded 61443 birds of 142 species in 2001. Most of them are the migratory bird of forest. The 昦jor data came froi last year (2001). The results were presented as follow:(1) AccipiternisusanA A. rirgatasare much tore in the west of Hei longjiang province than in the intermediate section of Heilongjiang province, fe would give reason for this. The west of Heilongjiang province is more level than the intermediate section of Heilongjiang province and there are more field than it. In spring, as hunt competition, Accipiter nisus come more early about 30 days than A. virgatus, in the west. In autumn, Accipiter m'sus and A. virgatus arrive at the same section almost at the same time. Because of there is enough food for them, in this season.(2) Tarsiger cyamras is the most of migratory bird of forest. But few of them were reclaimed. One of reason, the population of Tarsiger cynnuras is very large. Another reason, they average life is shorter.(3) Phylloscopussp. Come later and leave earlier, it has bearing on phenologic dates of plant and native climatic factor.(4) Buntings are the biggest monoid of migratory bird. In the two sections, the composition of the buntings are alike. But the quantity of every species are different. In the intermediate section Eiberiza elegans , E.spodocephalawA E. tristrati are much more. In the west, E.pasilla* Erutf/aund ?chrysophrys are the major species. It is leaded by the different of their multplying section and hibernaculum. Efucata* E.cioides and E. leucocephalasre all less in the two sections.(5) In the west of Heilongjiang province the phenologic dates is later about 3-15 days than in the intermediate section of Heilongjiang province. The difference is clear in early spring and late autumn. It is less in late spring and early autumn.(6) After working we pose two hypothesis of migrate: one is "firewall avoid hypothesis", another is "habitat optimization hypothesis".(7) fe have discovered Phoenicurus crythrogaster, Prunella fulvescen.<;, Carduelis horneianni* Etberiza citrine]la and Seiccrcus castaniceps. They are all new distribution in Heilongjiang province. They were all recorded in the west of Heilongjiang province.