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This call was perplexing until I came across a similar one identified as a VA Rail at Call Notes and Flight Calls. It seems to be a pretty good match for last part of "kicker" call. Spectrogram looks similar to Red-headed Woodpecker nocturnal call but sound does not match well. 

Barely audible example of Virginia Rail's "gidik gidik" call. Might have to get your headphones out to hear it better.

martinap2@verizon.net

SyrinxPC

Virginia Rail (latter part of "kicker" call) recorded on 4-24-06 around 1:41 AM

Virginia Rail "gidik gidik" call recorded on 04-04-10 at 1:18 AM

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