"spend lengths" is not a common or grammatically correct phrase in English.
It is possible that it was meant to be "lengths of time," but without more context it is difficult to determine the intended meaning. Example: "I spent endless lengths trying to perfect my essay." This sentence would be incorrect as it is unclear what is being spent (time? paper? patience?), but it could potentially be rephrased as "I spent endless amounts of time trying to perfect my essay" or "I spent hours upon hours trying to perfect my essay."
Conversely, during the post-chick guard stage when adults can spend increasing lengths of time away from the nest, or have failed in their nesting attempt, the core areas of Kure and Oahu birds began to overlap, primarily as a result of Oahu birds moving further west and the distributions of both colonies moving farther north.
If you want to spend any length of time in UEA you will need to apply for a visa.
These two, parlous though their situation is, are so dislikable that it's hard to spend the length of an entire feature film in their company.
Even when the news channels were not focusing on the Lindh appearance they did not spend any length of time at the Enron hearings, breaking away to cover briefings by Defense Secretary Donald Rumsfeld and Mr. Fleischer, as well as other events like a missing school bus in Pennsylvania.
For most travellers, the prospect of having to spend any length of time at an airport, especially a crowded international hub, is a miserable one.
And I never expected to spend any length of time there, let alone make the five-hour trek from Atlanta on multiple occasions.
There's a whole world of policing and law enforcement that has never been on television -- sometimes because those worlds are so seedy that there's not a way you'd want to spend any length of time there.
Among other self-portraits and portraits of visitors who spent varying lengths of time in Florence and Italy are those of Frank Duveneck and William Merritt Chase.
I haven't seen the Marcello Mastroianni original, but it surely can't have been as mawkishly unendurable as Kirk Jones's version, an About Schmidt wannabe in which Robert De Niro spends vast lengths of the story sitting on a bus or a train looking glum and unwanted.
Bdr mutants and controls spent similar lengths of time interacting with two identical objects in the first open-field trial and both groups spent significantly longer interacting with a novel object introduced in the second trial (Fig. 5).
