'Why is my model average summary repeating independent variables in coefficient table?

I am running a linear regression analysis in package MuMIn and when I ask for the model average summary some of the independent variables repeat themselves in the model-averaged coefficients table. I am running this analysis for multiple species of bats and will be exporting it for a manuscript so I am hoping there is a way to remove duplicates within R. I've attached my code- I apologize for the length.

l1<-lmer(LogMeanPlusM~1+(1|SiteName), data=means_plus)
l2<-lmer(LogMeanPlusM~WNSyears+(1|SiteName),data=means_plus) 
l3<-lmer(LogMeanPlusM~Pup+(1|SiteName), data=means_plus)
l4<-lmer(LogMeanPlusM~HabitatType+(1|SiteName),data=means_plus)
l5<-lmer(LogMeanPlusM~ParkCode+(1|SiteName),data=means_plus)
l6<-lmer(LogMeanPlusM~HabitatType*WNSyears+(1|SiteName),data=means_plus)
l7<-lmer(LogMeanPlusM~HabitatType+WNSyears+(1|SiteName),data=means_plus)
l8<-lmer(LogMeanPlusM~ParkCode*WNSyears+(1|SiteName),data=means_plus)
l9<-lmer(LogMeanPlusM~ParkCode+WNSyears+(1|SiteName),data=means_plus)
l10<-lmer(LogMeanPlusM~Pup*WNSyears+(1|SiteName), data=means_plus)
l11<-lmer(LogMeanPlusM~Pup+WNSyears+(1|SiteName), data=means_plus)
l12<-lmer(LogMeanPlusM~HabitatType+ParkCode*WNSyears+(1|SiteName), data=means_plus)
l13<-lmer(LogMeanPlusM~Pup+WNSyears*ParkCode+(1|SiteName), data=means_plus)
l14<-lmer(LogMeanPlusM~HabitatType+WNSyears*Pup+(1|SiteName), data=means_plus)
l15<-lmer(LogMeanPlusM~ParkCode+WNSyears*Pup+(1|SiteName), data=means_plus)
l16<-lmer(LogMeanPlusM~HabitatType+WNSyears+ParkCode+(1|SiteName), data=means_plus)
l17<-lmer(LogMeanPlusM~Pup+WNSyears+ParkCode+(1|SiteName), data=means_plus)
l18<-lmer(LogMeanPlusM~HabitatType+Pup+ParkCode+(1|SiteName), data=means_plus)
l19<-lmer(LogMeanPlusM~HabitatType+Pup+WNSyears+(1|SiteName), data=means_plus)
l20<-lmer(LogMeanPlusM~HabitatType+Pup+WNSyears+ParkCode+(1|SiteName), data=means_plus)
l21<-lmer(LogMeanPlusM~HabitatType+Pup+ParkCode*WNSyears+(1|SiteName), data=means_plus)
l22<-lmer(LogMeanPlusM~HabitatType*WNSyears+Pup+ParkCode+(1|SiteName), data=means_plus)
l23<-lmer(LogMeanPlusM~HabitatType+Pup*WNSyears+ParkCode+(1|SiteName), data=means_plus)
l24<-lmer(LogMeanPlusM~HabitatType*Pup+WNSyears+ParkCode+(1|SiteName), data=means_plus)
l25<-lmer(LogMeanPlusM~HabitatType+WNSyears+ParkCode*Pup+(1|SiteName), data=means_plus)
l26<-lmer(LogMeanPlusM~WNSyears+ParkCode*Pup+(1|SiteName), data=means_plus)
l27<-lmer(LogMeanPlusM~Pup*ParkCode+(1|SiteName),data=means_plus)
l28<-lmer(LogMeanPlusM~Pup*HabitatType+(1|SiteName),data=means_plus)
l29<-lmer(LogMeanPlusM~Pup*WNSyears+ParkCode*WNSyears+HabitatType*WNSyears+Pup*ParkCode+Pup*HabitatType+(1|SiteName),data=means_plus)
M1<model.avg(l1,l2,l3,l4,l5,l6,l7,l8,l9,l10,l11,l12,l13,l14,l15,l16,l17,l18,l19,l20,l21,l22,l23,l24,l25,l26,l27,l28,l29, beta=TRUE, rank=NULL, revised.var=TRUE, dispersion=NULL, ct.args=NULL)
summary(M1)
table<-coefTable(M1, full=TRUE)
table

                                          Estimate Std. Error
(Intercept)                       0.0000000000     0.0000
PupPre                           -0.0703693184     0.0458
WNSyears                         -0.2935396916     0.0957
ParkCodeGRPO                     -0.1222373724     0.0725
ParkCodeINDU                     -0.1926139403     0.1376
ParkCodeISRO                      0.0338018818     0.1459
ParkCodeMISS                      0.0614513671     0.0709
ParkCodePIRO                     -0.3894257398     0.0995
ParkCodeSACN                     -0.0414894796     0.0644
ParkCodeSLBE                     -0.0587584189     0.0923
ParkCodeVOYA                     -0.0612223608     0.0653
ParkCodeGRPO:WNSyears            -0.0990148798     0.0683
ParkCodeINDU:WNSyears             0.1395486782     0.1391
ParkCodeISRO:WNSyears            -0.2049322146     0.1483
ParkCodeMISS:WNSyears            -0.0434732032     0.0430
ParkCodePIRO:WNSyears            -0.0978247875     0.0888
ParkCodeSACN:WNSyears             0.0175567364     0.0421
ParkCodeSLBE:WNSyears             0.0298123201     0.0734
ParkCodeVOYA:WNSyears            -0.0242696458     0.0422
ParkCodeGRPO:PupPre              -0.0139027279     0.0363
ParkCodeINDU:PupPre               0.0000178213     0.0267
ParkCodeISRO:PupPre               0.0208333282     0.0474
ParkCodeMISS:PupPre               0.0026401140     0.0232
ParkCodePIRO:PupPre               0.0049220223     0.0257
ParkCodeSACN:PupPre               0.0063073559     0.0253
ParkCodeSLBE:PupPre              -0.0163903799     0.0413
ParkCodeVOYA:PupPre              -0.0176810133     0.0386
HabitatTypeForest                 0.0358622389     0.0861
HabitatTypeForestOpen             0.0325113776     0.0734
HabitatTypeOpen                   0.0389991149     0.0856
HabitatTypeWoodyWetland           0.0292161183     0.0672
ParkCodeGRPO:WNSyears            -0.0990148798     0.0683
ParkCodeINDU:WNSyears             0.1395486782     0.1391
ParkCodeISRO:WNSyears            -0.2049322146     0.1483
ParkCodeMISS:WNSyears            -0.0434732032     0.0430
ParkCodePIRO:WNSyears            -0.0978247875     0.0888
ParkCodeSACN:WNSyears             0.0175567364     0.0421
ParkCodeSLBE:WNSyears             0.0298123201     0.0734
ParkCodeVOYA:WNSyears            -0.0242696458     0.0422
PupPre:WNSyears                  -0.0000297303     0.0021
PupPre:WNSyears                  -0.0000297303     0.0021
HabitatTypeForest:PupPre          0.0000092906     0.0020
HabitatTypeForestOpen:PupPre      0.0000084675     0.0013
HabitatTypeOpen:PupPre            0.0000131434     0.0016
HabitatTypeWoodyWetland:PupPre    0.0000122035     0.0014
HabitatTypeForest:WNSyears        0.0000058793     0.0014
HabitatTypeForestOpen:WNSyears   -0.0000028477     0.0008
HabitatTypeOpen:WNSyears          0.0000030182     0.0009
HabitatTypeWoodyWetland:WNSyears  0.0000013016     0.0011
ParkCodeGRPO:PupPre              -0.0139027279     0.0363
ParkCodeINDU:PupPre               0.0000178213     0.0267
ParkCodeISRO:PupPre               0.0208333282     0.0474
ParkCodeMISS:PupPre               0.0026401140     0.0232
ParkCodePIRO:PupPre               0.0049220223     0.0257
ParkCodeSACN:PupPre               0.0063073559     0.0253
ParkCodeSLBE:PupPre              -0.0163903799     0.0413
ParkCodeVOYA:PupPre              -0.0176810133     0.0386
HabitatTypeForest:PupPre          0.0000092906     0.0020
HabitatTypeForestOpen:PupPre      0.0000084675     0.0013
HabitatTypeOpen:PupPre            0.0000131434     0.0016
HabitatTypeWoodyWetland:PupPre    0.0000122035     0.0014
HabitatTypeForest:WNSyears        0.0000058793     0.0014
HabitatTypeForestOpen:WNSyears   -0.0000028477     0.0008
HabitatTypeOpen:WNSyears          0.0000030182     0.0009
HabitatTypeWoodyWetland:WNSyears  0.0000013016     0.0011


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