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zone also occur where the shade is not too dense. A few of 

 the more important plants of the alder-willow association are 

 here listed: 



Alnus incana (L.) Moench. Speckled Alder 

 Alnus rugosa (DuRoi.) Spreng. Smooth Alder 

 Arisaema Dracontium (L.) Schott. Green Dragon 



Calla palustris L. 

 Cephalanthus ocddentalis L. 

 Cornus stolonifera Michx. 

 Radicula Nasturtium-aquaticum 



(L.) Britton & Rendle 

 Rosa Carolina L. 

 Rihes floridum L'Her. 

 Salix nigra Marsh. 

 Salix discolor Muhl. 

 Spiroea salicifolia L. 

 Symplocarpus foetidus (L.) 



Nutt. 

 Viburnum dentatum L. 



Water Arum 

 Buttonbush 

 Red-osier Dogwood 



True Water Cress 



Wild Rose 



Wild Black Currant 



Black Willow 



Glaucous Willow 



Meadowsweet 



Skunk Cabbage 

 Arrowwood 



For the birds, this habitat constitutes a transition between 

 the marsh and the uplands. The majority of them, such as 

 the Catbird, Rose-breasted Grosbeak, and Yellow Warbler, 

 are upland birds which are crowding into this part of the 

 swamp. The only birds truly typical of this habitat are the 

 Alder Flycatcher and the Green Heron. In the region under 

 consideration, the Redwing only occasionally leaves the cat- 

 tails and sedges for the alders. A list of the birds that have 

 been found nesting in this habitat follows : 



Butorides virescens 

 Zenaidura macroura carolinen- 



SIS 



Coccyzus americanus 

 Coccyzus erythrophthalmus 

 Dryohates puhescens medianus 

 Archilochus coluhris 



Tyr annus tyrannus ] 



Green Heron 



Mourning Dove 

 Yellow-billed Cuckoo 

 Black-billed Cuckoo 

 Downy Woodpecker 

 Ruby-throated Humming- 

 bird 

 Kingbird 



