tract vs breeding ground

Other hyponyms of tract include baseball diamond, diamond, infield, center, center field, centerfield, centre, left, left field, leftfield, outfield, right, right field, rightfield, short, railway yard, railyard, yard, desert, oasis, battlefield, battleground, field, field of battle, field of honor, minefield, clearing, glade, field, field of fire, grounds, athletic field, field, playing area, playing field, industrial park, grassland, mud flat, parade ground, fairground, midway, fairway, park, parkland, common, commons, green, park, picnic area, picnic ground, public square, square, toll plaza, range, sector, land site, site, subdivision, mine field, terrain, patch, plot, plot of ground, plot of land, lot, yard, yard.