Wings for My Flight
... that by 1975, the year Marcy Cottrell Houle's book Wings for My Flight documents, only 324 pairs of peregrine falcons resided in the United States?
... that by 1975, the year <a href="./Marcy_Cottrell_Houle" id="mwCNM" rel="mw:WikiLink" title="Marcy Cottrell Houle">Marcy Cottrell Houle</a>'s book <i id="mwCNQ"><b id="mwCNU"><a href="./Wings_for_My_Flight" id="mwCNY" rel="mw:WikiLink" title="Wings for My Flight">Wings for My Flight</a></b></i> documents, only 324 pairs of <a href="./Peregrine_falcon" id="mwCNc" rel="mw:WikiLink" title="Peregrine falcon">peregrine falcons</a> resided in the United States?