Assertion: horseshoe crab's egg | /r/HasProperty | laid by spawning horseshoe crabs
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text: Once in the Delaware Bay, red knots and other shorebirds feed predominantly on the eggs laid by spawning horseshoe crabs while they are available (Tsipoura and Burger, 1999; Mizrahi and Peters, 2009; McGowan et al., 2011; Smith et al., 2013).