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24 miles of fence has been replaced so far. This <br />project is based on a comprehensive management plan <br />reviewed by U.S. Fish and Wildlife Service (USFWS). <br />USFWS has provided DOFAW over $4 million for fence <br />replacement to protect palila critical habitat. DOFAW <br />conducts routine fence checks, and made several repairs <br />to sections damaged due to flash floods, other <br />environmental factors and deliberate vandalism, as well <br />as repairing sections of the old fence in areas where <br />replacement has not occurred. <br />G. Palila Surveys - 2014 Palila Population Estimate <br />Surveys were conducted over a two-week period in <br />January 2014 within the core area of the palila. The <br />2014 palila population was estimated to be 2,070 birds <br />with a confidence interval of 1,697 to 2,508 (Tables <br />III and IV) . <br />H. Palila Population Trend Analysis <br />U.S. Geological Survey (USGS)/Biological Resources <br />Discipline (BRD) analyzes palila population estimates <br />for DLNR/DOFAW. Palila analysis is conducted by using <br />the DISTANCE program. The population estimates provided <br />in this report are based on the number of birds <br />detected or counted during the survey and the <br />probability of birds being detected. These revised - <br />updated estimates have greater accuracy than estimates <br />provided in prior years and based on less data. The <br />population estimates reported in Table II and III were <br />based on annual estimates, and not updated with revised <br />detection probabilities. However, each subsequent <br />annual estimate gives a more accurate estimate for <br />previous years as more data makes statistical modeling <br />more effective. We have thus incorporated this new <br />analysis in updated tables (Tables IV) for the 1998 to <br />2014 time period. <br />These estimates are based on the core area, which is <br />currently the primary range and distribution of palila <br />(Figure 1). Furthermore, these trend data are subject <br />to change annually as more data is added to the <br />statistical model. Palila surveys have been conducted <br />on transects that bisect the core palila population and <br />areas outside the core across critical habitat. On <br />