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The image features a line graph titled "Population of wild birds: 1970-2004" focusing on the United Kingdom, plotting indices for four bird population categories, depicted over the years 1970 to 2004. The vertical axis ranges from 50 to 140 (index = 1970 = 100), and the horizontal axis represents time. Each category's bird population is represented by a specific line: Coastal species (20 species), All species (111 species), Woodland species (33 species), and Farmland species (19 species). Initially, in 1970, all categories start at an index of 100. Patterns vary distinctly among categories through years:
1. Coastal species index shows a fairly steady increase, starting at 100 in 1970, dipping slightly in the early 1970s, then climbing gradually, reaching around 120 in 2004.
2. All species index begins at 100 in 1970, decreases slightly to below 100 by 1976, fluctuates mildly around this range, and ends near 100 again in 2004.
3. Woodland species index starts at 100 in 1970, exhibits some fluctuation, dipping to approximately 90 by mid-1970s, recovering to 100 by 1980, with slight rises and falls, ending just below 100 by 2004.
4. Farmland species index begins at 100, shows a sharp decline to about 60 by mid-1980s, and maintains a relatively flat trend but slightly recuperates, closing near 70 in 2004.
Given the complexity of the image, the above description may not be entirely accurate.
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The graph illustrates the population figures of different types of wild birds in the United Kingdom between 1970 to 2004.
Overall, it is clear to seen that two species grew with the the one grew rapidly ratherthan, other species faced fall with the decades.
In first, in 1970 all species were on 100 with the time all flactuate but coastal species grew slight with every year. At the other hand, all species also faced some upwards and downward. Meanwhile, others went down the farmland species sharpaly went down with the time in 2004 it is on 50.
In second, all species also flactuates with the time in 1970 to 1976 they slightly increasing than in 1978 to 1979 they went to90 percent but in 1994 it stayed with 110 percent. Meanwhile, the coastle specie numbers were extended with the decades with high number of species. The other species numbers faced fall during the time.
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