The monthly occurrence and relative abundance of seabirds of inshore continental
shelf waters off Sydney during one year's observations are recorded and discussed.
An annotated list of the species with comments on their feeding behaviour and presence
in relation to breeding colonies is given.

The seabird assemblage of inshore waters off Sydney is characterised by four main
components based on seasonal movements. A peak in seabird abundance and biomass
during spring may have reflected an increase in productivity and this was supported by
the food utilisation of the species concerned.

The following additions should be made on page 4:

Line 3, Column 2. (after - one to one. Insert ) - However it increased to three juveniles and sub-adults to

one adult from August to November.

On page 11:

Table I. Insert line after  *Mottled Petrel - *Gould Petrel Pterodroma leucoptera.

In June 1970 eight nest boxes of the design shown in Figure 1 were fixed to the
sides of eucalypt trees at Tinderbox in south-eastern Tasmania. The boxes were
positioned at heights varying from 2 m to 4 m above the ground in an attempt to attract
Forty-spotted Pardalotes Pardalotus quadragintus as part of a study of the ecology of
this species.

The Camden Haven Wildlife Refuge Study, started in July 1977, is currently investigating
the effects of local forest management on the vertebrate fauna of the Kendall
State Forestry Management Area on the mid-north coast of N.S.W. Middle Brother
Mountain, elevation 556 m, contains Middle Brother State Forest within the Management
Area and overlooks the estuary of the Camden Haven River (see Map Figure 1). The
Camden Haven Wildlife Refuge is bounded by the river on its northern boundary and by
the State Forest along its southern limits. The vegetation of this area is predominently
tall wet sclerophyll forest of the moist Blackbutt Eucalyptus pilularis type and although
much is under intensive forest management, it supports a rich avifauna.