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If it is an advantage to be a food specialist and thereby avoid the extra competition that generalists face from other generalists,then why aren't all birds specialists?
Household Income
The combined gross income of all members of a household, considered together for the purposes of tax and welfare.
Annual Income
The total amount of money earned by an individual or entity within a calendar year, from all sources including wages, investments, and bonuses.
Income Distribution
The way in which total income is shared among the members of a society.
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