Editing Grebe (section)

===Feeding ecology===
The feeding ecology of grebes is diverse. Larger species such as those in the genus ''[[Aechmophorus]]'' have spear-like bills to catch mid-depth fish while smaller species such as those in the genera ''[[Tachybaptus]]'' and ''[[Podilymbus]]'' tend to be short and stout with a preference for catching small aquatic invertebrates. The majority of grebes predate on aquatic invertebrates, with only a handful of large-bodied [[piscivore]]s. The aforementioned ''Aechmophorus'' is the most piscivorous of the grebes. Closely related species that overlap in their range often avoid interspecific competition by having prey preferences and adaptations for it. In areas where there is just as a single species, they tend to have more generalized bills with more openness to different prey sources.<ref name="Johnsgard1987">{{cite book | last1 = Johnsgard | first1 =P. |year=1987 |title=Diving Birds of North America. | publisher=University of Nebraska Press | location=Nebraska | isbn = 9780803225664}}</ref>{{Rp|40–41}}
{{multiple image
| align             = center
| total_width       = 630
| image1            = PodilymbusPodiceps 6798.JPG
| alt1              = 
| caption1          = The [[pied-billed grebe]] (''Podilymbus podiceps'') is a small species of grebe that mostly hunts aquatic invertebrates. Here a parent feeds its chicks a crayfish.
| image2            = Dinner is Served (29844986194).jpg
| alt2              = 
| caption2          = The [[Clark's grebe]] (''Aechmophorus clarkii'') is a large species of grebe that mostly hunts fish. Here a parent feeds its chick.
| footer            = 
| direction         = 
}}