Introduction
Avian conservation is currently receiving much attention in North America. The status of seabird populations, including current estimates of numbers and indications of stability or change over time, forms crucial knowledge for conservation efforts. When combined with an understanding of the causes behind population change, population status is useful in identifying the species of greatest concern. Many of the articles in this issue of Bird Trends present new information of this kind, and describe both natural and man-made threats. Although gaps remain, we now have a solid foundation for efficient and effective seabird conservation.
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